19388516

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3191}}^1$

素因数の和:3240

約数の個数: 36

約数和(自身を含む): 40755456

約数和(自身を除く): 21366940

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 3191, 6076, 6382, 12764, 22337, 44674, 89348, 98921, 156359, 197842, 312718, 395684, 625436, 692447, 1384894, 2769788, 4847129, 9694258, 19388516]

約数ペア:

[(1, 19388516), (2, 9694258), (4, 4847129), (7, 2769788), (14, 1384894), (28, 692447), (31, 625436), (49, 395684), (62, 312718), (98, 197842), (124, 156359), (196, 98921), (217, 89348), (434, 44674), (868, 22337), (1519, 12764), (3038, 6382), (3191, 6076)]