21603340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 50944320

約数和(自身を除く): 29340980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 113, 121, 158, 220, 226, 242, 316, 395, 452, 484, 565, 605, 790, 869, 1130, 1210, 1243, 1580, 1738, 2260, 2420, 2486, 3476, 4345, 4972, 6215, 8690, 8927, 9559, 12430, 13673, 17380, 17854, 19118, 24860, 27346, 35708, 38236, 44635, 47795, 54692, 68365, 89270, 95590, 98197, 136730, 178540, 191180, 196394, 273460, 392788, 490985, 981970, 1080167, 1963940, 2160334, 4320668, 5400835, 10801670, 21603340]

約数ペア:

[(1, 21603340), (2, 10801670), (4, 5400835), (5, 4320668), (10, 2160334), (11, 1963940), (20, 1080167), (22, 981970), (44, 490985), (55, 392788), (79, 273460), (110, 196394), (113, 191180), (121, 178540), (158, 136730), (220, 98197), (226, 95590), (242, 89270), (316, 68365), (395, 54692), (452, 47795), (484, 44635), (565, 38236), (605, 35708), (790, 27346), (869, 24860), (1130, 19118), (1210, 17854), (1243, 17380), (1580, 13673), (1738, 12430), (2260, 9559), (2420, 8927), (2486, 8690), (3476, 6215), (4345, 4972)]