21381192

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 47738808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 79, 84, 108, 126, 158, 168, 179, 189, 216, 237, 252, 316, 358, 378, 474, 504, 537, 553, 632, 711, 716, 756, 948, 1074, 1106, 1253, 1422, 1432, 1512, 1611, 1659, 1896, 2133, 2148, 2212, 2506, 2844, 3222, 3318, 3759, 4266, 4296, 4424, 4833, 4977, 5012, 5688, 6444, 6636, 7518, 8532, 9666, 9954, 10024, 11277, 12888, 13272, 14141, 14931, 15036, 17064, 19332, 19908, 22554, 28282, 29862, 30072, 33831, 38664, 39816, 42423, 45108, 56564, 59724, 67662, 84846, 90216, 98987, 113128, 119448, 127269, 135324, 169692, 197974, 254538, 270648, 296961, 339384, 381807, 395948, 509076, 593922, 763614, 791896, 890883, 1018152, 1187844, 1527228, 1781766, 2375688, 2672649, 3054456, 3563532, 5345298, 7127064, 10690596, 21381192]

約数ペア:

[(1, 21381192), (2, 10690596), (3, 7127064), (4, 5345298), (6, 3563532), (7, 3054456), (8, 2672649), (9, 2375688), (12, 1781766), (14, 1527228), (18, 1187844), (21, 1018152), (24, 890883), (27, 791896), (28, 763614), (36, 593922), (42, 509076), (54, 395948), (56, 381807), (63, 339384), (72, 296961), (79, 270648), (84, 254538), (108, 197974), (126, 169692), (158, 135324), (168, 127269), (179, 119448), (189, 113128), (216, 98987), (237, 90216), (252, 84846), (316, 67662), (358, 59724), (378, 56564), (474, 45108), (504, 42423), (537, 39816), (553, 38664), (632, 33831), (711, 30072), (716, 29862), (756, 28282), (948, 22554), (1074, 19908), (1106, 19332), (1253, 17064), (1422, 15036), (1432, 14931), (1512, 14141), (1611, 13272), (1659, 12888), (1896, 11277), (2133, 10024), (2148, 9954), (2212, 9666), (2506, 8532), (2844, 7518), (3222, 6636), (3318, 6444), (3759, 5688), (4266, 5012), (4296, 4977), (4424, 4833)]