19723456

素因数分解:

$2^6\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:221

約数の個数: 56

約数和(自身を含む): 40965120

約数和(自身を除く): 21241664

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 79, 83, 94, 158, 166, 188, 316, 332, 376, 632, 664, 752, 1264, 1328, 1504, 2528, 2656, 3008, 3713, 3901, 5056, 5312, 6557, 7426, 7802, 13114, 14852, 15604, 26228, 29704, 31208, 52456, 59408, 62416, 104912, 118816, 124832, 209824, 237632, 249664, 308179, 419648, 616358, 1232716, 2465432, 4930864, 9861728, 19723456]

約数ペア:

[(1, 19723456), (2, 9861728), (4, 4930864), (8, 2465432), (16, 1232716), (32, 616358), (47, 419648), (64, 308179), (79, 249664), (83, 237632), (94, 209824), (158, 124832), (166, 118816), (188, 104912), (316, 62416), (332, 59408), (376, 52456), (632, 31208), (664, 29704), (752, 26228), (1264, 15604), (1328, 14852), (1504, 13114), (2528, 7802), (2656, 7426), (3008, 6557), (3713, 5312), (3901, 5056)]