21149584

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2399}}^1$

素因数の和:2455

約数の個数: 40

約数和(自身を含む): 44640000

約数和(自身を除く): 23490416

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2399, 4408, 4798, 8816, 9596, 19192, 38384, 45581, 69571, 91162, 139142, 182324, 278284, 364648, 556568, 729296, 1113136, 1321849, 2643698, 5287396, 10574792, 21149584]

約数ペア:

[(1, 21149584), (2, 10574792), (4, 5287396), (8, 2643698), (16, 1321849), (19, 1113136), (29, 729296), (38, 556568), (58, 364648), (76, 278284), (116, 182324), (152, 139142), (232, 91162), (304, 69571), (464, 45581), (551, 38384), (1102, 19192), (2204, 9596), (2399, 8816), (4408, 4798)]