20870764

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{5791}}^1$

素因数の和:5865

約数の個数: 24

約数和(自身を含む): 39408768

約数和(自身を除く): 18538004

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 901, 1802, 3604, 5791, 11582, 23164, 98447, 196894, 306923, 393788, 613846, 1227692, 5217691, 10435382, 20870764]

約数ペア:

[(1, 20870764), (2, 10435382), (4, 5217691), (17, 1227692), (34, 613846), (53, 393788), (68, 306923), (106, 196894), (212, 98447), (901, 23164), (1802, 11582), (3604, 5791)]