21491910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1277}}^1$

素因数の和:1318

約数の個数: 96

約数和(自身を含む): 64595232

約数和(自身を除く): 43103322

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 17, 18, 22, 30, 33, 34, 45, 51, 55, 66, 85, 90, 99, 102, 110, 153, 165, 170, 187, 198, 255, 306, 330, 374, 495, 510, 561, 765, 935, 990, 1122, 1277, 1530, 1683, 1870, 2554, 2805, 3366, 3831, 5610, 6385, 7662, 8415, 11493, 12770, 14047, 16830, 19155, 21709, 22986, 28094, 38310, 42141, 43418, 57465, 65127, 70235, 84282, 108545, 114930, 126423, 130254, 140470, 195381, 210705, 217090, 238799, 252846, 325635, 390762, 421410, 477598, 632115, 651270, 716397, 976905, 1193995, 1264230, 1432794, 1953810, 2149191, 2387990, 3581985, 4298382, 7163970, 10745955, 21491910]

約数ペア:

[(1, 21491910), (2, 10745955), (3, 7163970), (5, 4298382), (6, 3581985), (9, 2387990), (10, 2149191), (11, 1953810), (15, 1432794), (17, 1264230), (18, 1193995), (22, 976905), (30, 716397), (33, 651270), (34, 632115), (45, 477598), (51, 421410), (55, 390762), (66, 325635), (85, 252846), (90, 238799), (99, 217090), (102, 210705), (110, 195381), (153, 140470), (165, 130254), (170, 126423), (187, 114930), (198, 108545), (255, 84282), (306, 70235), (330, 65127), (374, 57465), (495, 43418), (510, 42141), (561, 38310), (765, 28094), (935, 22986), (990, 21709), (1122, 19155), (1277, 16830), (1530, 14047), (1683, 12770), (1870, 11493), (2554, 8415), (2805, 7662), (3366, 6385), (3831, 5610)]