21757372

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8539}}^1$

素因数の和:8570

約数の個数: 36

約数和(自身を含む): 47704440

約数和(自身を除く): 25947068

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8539, 17078, 34156, 59773, 111007, 119546, 222014, 239092, 418411, 444028, 777049, 836822, 1554098, 1673644, 3108196, 5439343, 10878686, 21757372]

約数ペア:

[(1, 21757372), (2, 10878686), (4, 5439343), (7, 3108196), (13, 1673644), (14, 1554098), (26, 836822), (28, 777049), (49, 444028), (52, 418411), (91, 239092), (98, 222014), (182, 119546), (196, 111007), (364, 59773), (637, 34156), (1274, 17078), (2548, 8539)]