21869728

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 23006432

約数列:

[1, 2, 4, 8, 16, 32, 41, 79, 82, 158, 164, 211, 316, 328, 422, 632, 656, 844, 1264, 1312, 1688, 2528, 3239, 3376, 6478, 6752, 8651, 12956, 16669, 17302, 25912, 33338, 34604, 51824, 66676, 69208, 103648, 133352, 138416, 266704, 276832, 533408, 683429, 1366858, 2733716, 5467432, 10934864, 21869728]

約数ペア:

[(1, 21869728), (2, 10934864), (4, 5467432), (8, 2733716), (16, 1366858), (32, 683429), (41, 533408), (79, 276832), (82, 266704), (158, 138416), (164, 133352), (211, 103648), (316, 69208), (328, 66676), (422, 51824), (632, 34604), (656, 33338), (844, 25912), (1264, 17302), (1312, 16669), (1688, 12956), (2528, 8651), (3239, 6752), (3376, 6478)]