21331908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2399}}^1$

素因数の和:2441

約数の個数: 72

約数和(自身を含む): 61152000

約数和(自身を除く): 39820092

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2399, 2964, 4446, 4798, 7197, 8892, 9596, 14394, 21591, 28788, 31187, 43182, 45581, 62374, 86364, 91162, 93561, 124748, 136743, 182324, 187122, 273486, 280683, 374244, 410229, 546972, 561366, 592553, 820458, 1122732, 1185106, 1640916, 1777659, 2370212, 3555318, 5332977, 7110636, 10665954, 21331908]

約数ペア:

[(1, 21331908), (2, 10665954), (3, 7110636), (4, 5332977), (6, 3555318), (9, 2370212), (12, 1777659), (13, 1640916), (18, 1185106), (19, 1122732), (26, 820458), (36, 592553), (38, 561366), (39, 546972), (52, 410229), (57, 374244), (76, 280683), (78, 273486), (114, 187122), (117, 182324), (156, 136743), (171, 124748), (228, 93561), (234, 91162), (247, 86364), (342, 62374), (468, 45581), (494, 43182), (684, 31187), (741, 28788), (988, 21591), (1482, 14394), (2223, 9596), (2399, 8892), (2964, 7197), (4446, 4798)]