21321180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3821}}^1$

素因数の和:3867

約数の個数: 72

約数和(自身を含む): 66777984

約数和(自身を除く): 45456804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3821, 5580, 7642, 11463, 15284, 19105, 22926, 34389, 38210, 45852, 57315, 68778, 76420, 114630, 118451, 137556, 171945, 229260, 236902, 343890, 355353, 473804, 592255, 687780, 710706, 1066059, 1184510, 1421412, 1776765, 2132118, 2369020, 3553530, 4264236, 5330295, 7107060, 10660590, 21321180]

約数ペア:

[(1, 21321180), (2, 10660590), (3, 7107060), (4, 5330295), (5, 4264236), (6, 3553530), (9, 2369020), (10, 2132118), (12, 1776765), (15, 1421412), (18, 1184510), (20, 1066059), (30, 710706), (31, 687780), (36, 592255), (45, 473804), (60, 355353), (62, 343890), (90, 236902), (93, 229260), (124, 171945), (155, 137556), (180, 118451), (186, 114630), (279, 76420), (310, 68778), (372, 57315), (465, 45852), (558, 38210), (620, 34389), (930, 22926), (1116, 19105), (1395, 15284), (1860, 11463), (2790, 7642), (3821, 5580)]