21241378688

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{677}}^1\times {\mathrm{14419}}^1$

素因数の和:15127

約数の個数: 64

約数和(自身を含む): 44875328400

約数和(自身を除く): 23633949712

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 677, 1088, 1354, 2176, 2708, 5416, 10832, 11509, 14419, 21664, 23018, 28838, 43328, 46036, 57676, 86656, 92072, 115352, 184144, 230704, 245123, 368288, 461408, 490246, 736576, 922816, 980492, 1473152, 1845632, 1960984, 3921968, 7843936, 9761663, 15687872, 19523326, 31375744, 39046652, 78093304, 156186608, 165948271, 312373216, 331896542, 624746432, 663793084, 1249492864, 1327586168, 2655172336, 5310344672, 10620689344, 21241378688]

約数ペア:

[(1, 21241378688), (2, 10620689344), (4, 5310344672), (8, 2655172336), (16, 1327586168), (17, 1249492864), (32, 663793084), (34, 624746432), (64, 331896542), (68, 312373216), (128, 165948271), (136, 156186608), (272, 78093304), (544, 39046652), (677, 31375744), (1088, 19523326), (1354, 15687872), (2176, 9761663), (2708, 7843936), (5416, 3921968), (10832, 1960984), (11509, 1845632), (14419, 1473152), (21664, 980492), (23018, 922816), (28838, 736576), (43328, 490246), (46036, 461408), (57676, 368288), (86656, 245123), (92072, 230704), (115352, 184144)]