21435040

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 96

約数和(自身を含む): 58242240

約数和(自身を除く): 36807200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 352, 380, 418, 440, 608, 641, 760, 836, 880, 1045, 1282, 1520, 1672, 1760, 2090, 2564, 3040, 3205, 3344, 4180, 5128, 6410, 6688, 7051, 8360, 10256, 12179, 12820, 14102, 16720, 20512, 24358, 25640, 28204, 33440, 35255, 48716, 51280, 56408, 60895, 70510, 97432, 102560, 112816, 121790, 133969, 141020, 194864, 225632, 243580, 267938, 282040, 389728, 487160, 535876, 564080, 669845, 974320, 1071752, 1128160, 1339690, 1948640, 2143504, 2679380, 4287008, 5358760, 10717520, 21435040]

約数ペア:

[(1, 21435040), (2, 10717520), (4, 5358760), (5, 4287008), (8, 2679380), (10, 2143504), (11, 1948640), (16, 1339690), (19, 1128160), (20, 1071752), (22, 974320), (32, 669845), (38, 564080), (40, 535876), (44, 487160), (55, 389728), (76, 282040), (80, 267938), (88, 243580), (95, 225632), (110, 194864), (152, 141020), (160, 133969), (176, 121790), (190, 112816), (209, 102560), (220, 97432), (304, 70510), (352, 60895), (380, 56408), (418, 51280), (440, 48716), (608, 35255), (641, 33440), (760, 28204), (836, 25640), (880, 24358), (1045, 20512), (1282, 16720), (1520, 14102), (1672, 12820), (1760, 12179), (2090, 10256), (2564, 8360), (3040, 7051), (3205, 6688), (3344, 6410), (4180, 5128)]