20193684

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 55808928

約数和(自身を除く): 35615244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 61, 84, 98, 122, 147, 183, 196, 244, 294, 366, 427, 563, 588, 732, 854, 1126, 1281, 1689, 1708, 2252, 2562, 2989, 3378, 3941, 5124, 5978, 6756, 7882, 8967, 11823, 11956, 15764, 17934, 23646, 27587, 34343, 35868, 47292, 55174, 68686, 82761, 103029, 110348, 137372, 165522, 206058, 240401, 331044, 412116, 480802, 721203, 961604, 1442406, 1682807, 2884812, 3365614, 5048421, 6731228, 10096842, 20193684]

約数ペア:

[(1, 20193684), (2, 10096842), (3, 6731228), (4, 5048421), (6, 3365614), (7, 2884812), (12, 1682807), (14, 1442406), (21, 961604), (28, 721203), (42, 480802), (49, 412116), (61, 331044), (84, 240401), (98, 206058), (122, 165522), (147, 137372), (183, 110348), (196, 103029), (244, 82761), (294, 68686), (366, 55174), (427, 47292), (563, 35868), (588, 34343), (732, 27587), (854, 23646), (1126, 17934), (1281, 15764), (1689, 11956), (1708, 11823), (2252, 8967), (2562, 7882), (2989, 6756), (3378, 5978), (3941, 5124)]