21737040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6967}}^1$

素因数の和:6996

約数の個数: 80

約数和(自身を含む): 72578688

約数和(自身を除く): 50841648

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, 6967, 13934, 20901, 27868, 34835, 41802, 55736, 69670, 83604, 90571, 104505, 111472, 139340, 167208, 181142, 209010, 271713, 278680, 334416, 362284, 418020, 452855, 543426, 557360, 724568, 836040, 905710, 1086852, 1358565, 1449136, 1672080, 1811420, 2173704, 2717130, 3622840, 4347408, 5434260, 7245680, 10868520, 21737040]

約数ペア:

[(1, 21737040), (2, 10868520), (3, 7245680), (4, 5434260), (5, 4347408), (6, 3622840), (8, 2717130), (10, 2173704), (12, 1811420), (13, 1672080), (15, 1449136), (16, 1358565), (20, 1086852), (24, 905710), (26, 836040), (30, 724568), (39, 557360), (40, 543426), (48, 452855), (52, 418020), (60, 362284), (65, 334416), (78, 278680), (80, 271713), (104, 209010), (120, 181142), (130, 167208), (156, 139340), (195, 111472), (208, 104505), (240, 90571), (260, 83604), (312, 69670), (390, 55736), (520, 41802), (624, 34835), (780, 27868), (1040, 20901), (1560, 13934), (3120, 6967)]