21747430

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^3\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 41004288

約数和(自身を除く): 19256858

約数列:

[1, 2, 5, 10, 31, 62, 73, 146, 155, 310, 365, 730, 961, 1922, 2263, 4526, 4805, 9610, 11315, 22630, 29791, 59582, 70153, 140306, 148955, 297910, 350765, 701530, 2174743, 4349486, 10873715, 21747430]

約数ペア:

[(1, 21747430), (2, 10873715), (5, 4349486), (10, 2174743), (31, 701530), (62, 350765), (73, 297910), (146, 148955), (155, 140306), (310, 70153), (365, 59582), (730, 29791), (961, 22630), (1922, 11315), (2263, 9610), (4526, 4805)]