21116961840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6768257}}^1$

素因数の和:6768286

約数の個数: 80

約数和(自身を含む): 70498175328

約数和(自身を除く): 49381213488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6768257, 13536514, 20304771, 27073028, 33841285, 40609542, 54146056, 67682570, 81219084, 87987341, 101523855, 108292112, 135365140, 162438168, 175974682, 203047710, 263962023, 270730280, 324876336, 351949364, 406095420, 439936705, 527924046, 541460560, 703898728, 812190840, 879873410, 1055848092, 1319810115, 1407797456, 1624381680, 1759746820, 2111696184, 2639620230, 3519493640, 4223392368, 5279240460, 7038987280, 10558480920, 21116961840]

約数ペア:

[(1, 21116961840), (2, 10558480920), (3, 7038987280), (4, 5279240460), (5, 4223392368), (6, 3519493640), (8, 2639620230), (10, 2111696184), (12, 1759746820), (13, 1624381680), (15, 1407797456), (16, 1319810115), (20, 1055848092), (24, 879873410), (26, 812190840), (30, 703898728), (39, 541460560), (40, 527924046), (48, 439936705), (52, 406095420), (60, 351949364), (65, 324876336), (78, 270730280), (80, 263962023), (104, 203047710), (120, 175974682), (130, 162438168), (156, 135365140), (195, 108292112), (208, 101523855), (240, 87987341), (260, 81219084), (312, 67682570), (390, 54146056), (520, 40609542), (624, 33841285), (780, 27073028), (1040, 20304771), (1560, 13536514), (3120, 6768257)]