21549762

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 54774720

約数和(自身を除く): 33224958

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 37, 38, 39, 57, 74, 78, 111, 114, 117, 131, 171, 222, 234, 247, 262, 333, 342, 393, 481, 494, 666, 703, 741, 786, 962, 1179, 1406, 1443, 1482, 1703, 2109, 2223, 2358, 2489, 2886, 3406, 4218, 4329, 4446, 4847, 4978, 5109, 6327, 7467, 8658, 9139, 9694, 10218, 12654, 14541, 14934, 15327, 18278, 22401, 27417, 29082, 30654, 32357, 43623, 44802, 54834, 63011, 64714, 82251, 87246, 92093, 97071, 126022, 164502, 184186, 189033, 194142, 276279, 291213, 378066, 552558, 567099, 582426, 828837, 1134198, 1197209, 1657674, 2394418, 3591627, 7183254, 10774881, 21549762]

約数ペア:

[(1, 21549762), (2, 10774881), (3, 7183254), (6, 3591627), (9, 2394418), (13, 1657674), (18, 1197209), (19, 1134198), (26, 828837), (37, 582426), (38, 567099), (39, 552558), (57, 378066), (74, 291213), (78, 276279), (111, 194142), (114, 189033), (117, 184186), (131, 164502), (171, 126022), (222, 97071), (234, 92093), (247, 87246), (262, 82251), (333, 64714), (342, 63011), (393, 54834), (481, 44802), (494, 43623), (666, 32357), (703, 30654), (741, 29082), (786, 27417), (962, 22401), (1179, 18278), (1406, 15327), (1443, 14934), (1482, 14541), (1703, 12654), (2109, 10218), (2223, 9694), (2358, 9139), (2489, 8658), (2886, 7467), (3406, 6327), (4218, 5109), (4329, 4978), (4446, 4847)]