21354960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8089}}^1$

素因数の和:8116

約数の個数: 80

約数和(自身を含む): 72227520

約数和(自身を除く): 50872560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 8089, 16178, 24267, 32356, 40445, 48534, 64712, 80890, 88979, 97068, 121335, 129424, 161780, 177958, 194136, 242670, 266937, 323560, 355916, 388272, 444895, 485340, 533874, 647120, 711832, 889790, 970680, 1067748, 1334685, 1423664, 1779580, 1941360, 2135496, 2669370, 3559160, 4270992, 5338740, 7118320, 10677480, 21354960]

約数ペア:

[(1, 21354960), (2, 10677480), (3, 7118320), (4, 5338740), (5, 4270992), (6, 3559160), (8, 2669370), (10, 2135496), (11, 1941360), (12, 1779580), (15, 1423664), (16, 1334685), (20, 1067748), (22, 970680), (24, 889790), (30, 711832), (33, 647120), (40, 533874), (44, 485340), (48, 444895), (55, 388272), (60, 355916), (66, 323560), (80, 266937), (88, 242670), (110, 194136), (120, 177958), (132, 161780), (165, 129424), (176, 121335), (220, 97068), (240, 88979), (264, 80890), (330, 64712), (440, 48534), (528, 40445), (660, 32356), (880, 24267), (1320, 16178), (2640, 8089)]