20643246

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1877}}^1$

素因数の和:1945

約数の個数: 48

約数和(自身を含む): 49218624

約数和(自身を除く): 28575378

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 234, 282, 423, 611, 846, 1222, 1833, 1877, 3666, 3754, 5499, 5631, 10998, 11262, 16893, 24401, 33786, 48802, 73203, 88219, 146406, 176438, 219609, 264657, 439218, 529314, 793971, 1146847, 1587942, 2293694, 3440541, 6881082, 10321623, 20643246]

約数ペア:

[(1, 20643246), (2, 10321623), (3, 6881082), (6, 3440541), (9, 2293694), (13, 1587942), (18, 1146847), (26, 793971), (39, 529314), (47, 439218), (78, 264657), (94, 219609), (117, 176438), (141, 146406), (234, 88219), (282, 73203), (423, 48802), (611, 33786), (846, 24401), (1222, 16893), (1833, 11262), (1877, 10998), (3666, 5631), (3754, 5499)]