19617632

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 40415760

約数和(自身を除く): 20798128

約数列:

[1, 2, 4, 8, 16, 32, 43, 53, 86, 106, 172, 212, 269, 344, 424, 538, 688, 848, 1076, 1376, 1696, 2152, 2279, 4304, 4558, 8608, 9116, 11567, 14257, 18232, 23134, 28514, 36464, 46268, 57028, 72928, 92536, 114056, 185072, 228112, 370144, 456224, 613051, 1226102, 2452204, 4904408, 9808816, 19617632]

約数ペア:

[(1, 19617632), (2, 9808816), (4, 4904408), (8, 2452204), (16, 1226102), (32, 613051), (43, 456224), (53, 370144), (86, 228112), (106, 185072), (172, 114056), (212, 92536), (269, 72928), (344, 57028), (424, 46268), (538, 36464), (688, 28514), (848, 23134), (1076, 18232), (1376, 14257), (1696, 11567), (2152, 9116), (2279, 8608), (4304, 4558)]