21199948

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9833}}^1$

素因数の和:9862

約数の個数: 36

約数和(自身を含む): 47085192

約数和(自身を除く): 25885244

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9833, 19666, 39332, 68831, 108163, 137662, 216326, 275324, 432652, 481817, 757141, 963634, 1514282, 1927268, 3028564, 5299987, 10599974, 21199948]

約数ペア:

[(1, 21199948), (2, 10599974), (4, 5299987), (7, 3028564), (11, 1927268), (14, 1514282), (22, 963634), (28, 757141), (44, 481817), (49, 432652), (77, 275324), (98, 216326), (154, 137662), (196, 108163), (308, 68831), (539, 39332), (1078, 19666), (2156, 9833)]