21315184

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{743}}^1$

素因数の和:925

約数の個数: 40

約数和(自身を含む): 45389952

約数和(自身を除く): 24074768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 163, 176, 326, 652, 743, 1304, 1486, 1793, 2608, 2972, 3586, 5944, 7172, 8173, 11888, 14344, 16346, 28688, 32692, 65384, 121109, 130768, 242218, 484436, 968872, 1332199, 1937744, 2664398, 5328796, 10657592, 21315184]

約数ペア:

[(1, 21315184), (2, 10657592), (4, 5328796), (8, 2664398), (11, 1937744), (16, 1332199), (22, 968872), (44, 484436), (88, 242218), (163, 130768), (176, 121109), (326, 65384), (652, 32692), (743, 28688), (1304, 16346), (1486, 14344), (1793, 11888), (2608, 8173), (2972, 7172), (3586, 5944)]