21491422680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1968079}}^1$

素因数の和:1968113

約数の個数: 128

約数和(自身を含む): 79352985600

約数和(自身を除く): 57861562920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 1968079, 3936158, 5904237, 7872316, 9840395, 11808474, 13776553, 15744632, 19680790, 23616948, 25585027, 27553106, 29521185, 39361580, 41329659, 47233896, 51170054, 55106212, 59042370, 68882765, 76755081, 78723160, 82659318, 102340108, 110212424, 118084740, 127925135, 137765530, 153510162, 165318636, 179095189, 204680216, 206648295, 236169480, 255850270, 275531060, 307020324, 330637272, 358190378, 383775405, 413296590, 511700540, 537285567, 551062120, 614040648, 716380756, 767550810, 826593180, 895475945, 1023401080, 1074571134, 1432761512, 1535101620, 1653186360, 1790951890, 2149142268, 2686427835, 3070203240, 3581903780, 4298284536, 5372855670, 7163807560, 10745711340, 21491422680]

約数ペア:

[(1, 21491422680), (2, 10745711340), (3, 7163807560), (4, 5372855670), (5, 4298284536), (6, 3581903780), (7, 3070203240), (8, 2686427835), (10, 2149142268), (12, 1790951890), (13, 1653186360), (14, 1535101620), (15, 1432761512), (20, 1074571134), (21, 1023401080), (24, 895475945), (26, 826593180), (28, 767550810), (30, 716380756), (35, 614040648), (39, 551062120), (40, 537285567), (42, 511700540), (52, 413296590), (56, 383775405), (60, 358190378), (65, 330637272), (70, 307020324), (78, 275531060), (84, 255850270), (91, 236169480), (104, 206648295), (105, 204680216), (120, 179095189), (130, 165318636), (140, 153510162), (156, 137765530), (168, 127925135), (182, 118084740), (195, 110212424), (210, 102340108), (260, 82659318), (273, 78723160), (280, 76755081), (312, 68882765), (364, 59042370), (390, 55106212), (420, 51170054), (455, 47233896), (520, 41329659), (546, 39361580), (728, 29521185), (780, 27553106), (840, 25585027), (910, 23616948), (1092, 19680790), (1365, 15744632), (1560, 13776553), (1820, 11808474), (2184, 9840395), (2730, 7872316), (3640, 5904237), (5460, 3936158), (10920, 1968079)]