21116970

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11173}}^1$

素因数の和:11196

約数の個数: 64

約数和(自身を含む): 64362240

約数和(自身を除く): 43245270

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11173, 22346, 33519, 55865, 67038, 78211, 100557, 111730, 156422, 167595, 201114, 234633, 301671, 335190, 391055, 469266, 502785, 603342, 703899, 782110, 1005570, 1173165, 1407798, 1508355, 2111697, 2346330, 3016710, 3519495, 4223394, 7038990, 10558485, 21116970]

約数ペア:

[(1, 21116970), (2, 10558485), (3, 7038990), (5, 4223394), (6, 3519495), (7, 3016710), (9, 2346330), (10, 2111697), (14, 1508355), (15, 1407798), (18, 1173165), (21, 1005570), (27, 782110), (30, 703899), (35, 603342), (42, 502785), (45, 469266), (54, 391055), (63, 335190), (70, 301671), (90, 234633), (105, 201114), (126, 167595), (135, 156422), (189, 111730), (210, 100557), (270, 78211), (315, 67038), (378, 55865), (630, 33519), (945, 22346), (1890, 11173)]