21469028

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 28172956

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 37, 46, 53, 68, 74, 92, 106, 119, 148, 161, 212, 238, 259, 322, 371, 391, 476, 518, 629, 644, 742, 782, 851, 901, 1036, 1219, 1258, 1484, 1564, 1702, 1802, 1961, 2438, 2516, 2737, 3404, 3604, 3922, 4403, 4876, 5474, 5957, 6307, 7844, 8533, 8806, 10948, 11914, 12614, 13727, 14467, 17066, 17612, 20723, 23828, 25228, 27454, 28934, 33337, 34132, 41446, 45103, 54908, 57868, 66674, 82892, 90206, 101269, 133348, 145061, 180412, 202538, 233359, 290122, 315721, 405076, 466718, 580244, 631442, 766751, 933436, 1262884, 1533502, 3067004, 5367257, 10734514, 21469028]

約数ペア:

[(1, 21469028), (2, 10734514), (4, 5367257), (7, 3067004), (14, 1533502), (17, 1262884), (23, 933436), (28, 766751), (34, 631442), (37, 580244), (46, 466718), (53, 405076), (68, 315721), (74, 290122), (92, 233359), (106, 202538), (119, 180412), (148, 145061), (161, 133348), (212, 101269), (238, 90206), (259, 82892), (322, 66674), (371, 57868), (391, 54908), (476, 45103), (518, 41446), (629, 34132), (644, 33337), (742, 28934), (782, 27454), (851, 25228), (901, 23828), (1036, 20723), (1219, 17612), (1258, 17066), (1484, 14467), (1564, 13727), (1702, 12614), (1802, 11914), (1961, 10948), (2438, 8806), (2516, 8533), (2737, 7844), (3404, 6307), (3604, 5957), (3922, 5474), (4403, 4876)]