21948290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 27403390

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 89, 91, 130, 178, 182, 271, 445, 455, 542, 623, 890, 910, 1157, 1246, 1355, 1897, 2314, 2710, 3115, 3523, 3794, 5785, 6230, 7046, 8099, 9485, 11570, 16198, 17615, 18970, 24119, 24661, 35230, 40495, 48238, 49322, 80990, 120595, 123305, 168833, 241190, 246610, 313547, 337666, 627094, 844165, 1567735, 1688330, 2194829, 3135470, 4389658, 10974145, 21948290]

約数ペア:

[(1, 21948290), (2, 10974145), (5, 4389658), (7, 3135470), (10, 2194829), (13, 1688330), (14, 1567735), (26, 844165), (35, 627094), (65, 337666), (70, 313547), (89, 246610), (91, 241190), (130, 168833), (178, 123305), (182, 120595), (271, 80990), (445, 49322), (455, 48238), (542, 40495), (623, 35230), (890, 24661), (910, 24119), (1157, 18970), (1246, 17615), (1355, 16198), (1897, 11570), (2314, 9485), (2710, 8099), (3115, 7046), (3523, 6230), (3794, 5785)]