21122688

素因数分解:

$2^7\times 3^1\times {\mathrm{67}}^1\times {\mathrm{821}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 57013920

約数和(自身を除く): 35891232

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 67, 96, 128, 134, 192, 201, 268, 384, 402, 536, 804, 821, 1072, 1608, 1642, 2144, 2463, 3216, 3284, 4288, 4926, 6432, 6568, 8576, 9852, 12864, 13136, 19704, 25728, 26272, 39408, 52544, 55007, 78816, 105088, 110014, 157632, 165021, 220028, 315264, 330042, 440056, 660084, 880112, 1320168, 1760224, 2640336, 3520448, 5280672, 7040896, 10561344, 21122688]

約数ペア:

[(1, 21122688), (2, 10561344), (3, 7040896), (4, 5280672), (6, 3520448), (8, 2640336), (12, 1760224), (16, 1320168), (24, 880112), (32, 660084), (48, 440056), (64, 330042), (67, 315264), (96, 220028), (128, 165021), (134, 157632), (192, 110014), (201, 105088), (268, 78816), (384, 55007), (402, 52544), (536, 39408), (804, 26272), (821, 25728), (1072, 19704), (1608, 13136), (1642, 12864), (2144, 9852), (2463, 8576), (3216, 6568), (3284, 6432), (4288, 4926)]