21167357990

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{233}}^1\times {\mathrm{457}}^1$

素因数の和:993

約数の個数: 64

約数和(自身を含む): 38921440896

約数和(自身を除く): 17754082906

約数列:

[1, 2, 5, 10, 103, 193, 206, 233, 386, 457, 466, 515, 914, 965, 1030, 1165, 1930, 2285, 2330, 4570, 19879, 23999, 39758, 44969, 47071, 47998, 88201, 89938, 94142, 99395, 106481, 119995, 176402, 198790, 212962, 224845, 235355, 239990, 441005, 449690, 470710, 532405, 882010, 1064810, 4631807, 9084703, 9263614, 10967543, 18169406, 20550833, 21935086, 23159035, 41101666, 45423515, 46318070, 54837715, 90847030, 102754165, 109675430, 205508330, 2116735799, 4233471598, 10583678995, 21167357990]

約数ペア:

[(1, 21167357990), (2, 10583678995), (5, 4233471598), (10, 2116735799), (103, 205508330), (193, 109675430), (206, 102754165), (233, 90847030), (386, 54837715), (457, 46318070), (466, 45423515), (515, 41101666), (914, 23159035), (965, 21935086), (1030, 20550833), (1165, 18169406), (1930, 10967543), (2285, 9263614), (2330, 9084703), (4570, 4631807), (19879, 1064810), (23999, 882010), (39758, 532405), (44969, 470710), (47071, 449690), (47998, 441005), (88201, 239990), (89938, 235355), (94142, 224845), (99395, 212962), (106481, 198790), (119995, 176402)]