21662420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:94

約数の個数: 96

約数和(自身を含む): 53978400

約数和(自身を除く): 32315980

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 29, 34, 52, 58, 65, 68, 85, 116, 130, 145, 169, 170, 221, 260, 290, 338, 340, 377, 442, 493, 580, 676, 754, 845, 884, 986, 1105, 1508, 1690, 1885, 1972, 2197, 2210, 2465, 2873, 3380, 3770, 4394, 4420, 4901, 4930, 5746, 6409, 7540, 8788, 9802, 9860, 10985, 11492, 12818, 14365, 19604, 21970, 24505, 25636, 28730, 32045, 37349, 43940, 49010, 57460, 63713, 64090, 74698, 83317, 98020, 127426, 128180, 149396, 166634, 186745, 254852, 318565, 333268, 373490, 416585, 637130, 746980, 833170, 1083121, 1274260, 1666340, 2166242, 4332484, 5415605, 10831210, 21662420]

約数ペア:

[(1, 21662420), (2, 10831210), (4, 5415605), (5, 4332484), (10, 2166242), (13, 1666340), (17, 1274260), (20, 1083121), (26, 833170), (29, 746980), (34, 637130), (52, 416585), (58, 373490), (65, 333268), (68, 318565), (85, 254852), (116, 186745), (130, 166634), (145, 149396), (169, 128180), (170, 127426), (221, 98020), (260, 83317), (290, 74698), (338, 64090), (340, 63713), (377, 57460), (442, 49010), (493, 43940), (580, 37349), (676, 32045), (754, 28730), (845, 25636), (884, 24505), (986, 21970), (1105, 19604), (1508, 14365), (1690, 12818), (1885, 11492), (1972, 10985), (2197, 9860), (2210, 9802), (2465, 8788), (2873, 7540), (3380, 6409), (3770, 5746), (4394, 4930), (4420, 4901)]