20819214

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 50964480

約数和(自身を除く): 30145266

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 47, 54, 78, 94, 117, 141, 234, 282, 351, 423, 611, 631, 702, 846, 1222, 1262, 1269, 1833, 1893, 2538, 3666, 3786, 5499, 5679, 8203, 10998, 11358, 16406, 16497, 17037, 24609, 29657, 32994, 34074, 49218, 59314, 73827, 88971, 147654, 177942, 221481, 266913, 385541, 442962, 533826, 771082, 800739, 1156623, 1601478, 2313246, 3469869, 6939738, 10409607, 20819214]

約数ペア:

[(1, 20819214), (2, 10409607), (3, 6939738), (6, 3469869), (9, 2313246), (13, 1601478), (18, 1156623), (26, 800739), (27, 771082), (39, 533826), (47, 442962), (54, 385541), (78, 266913), (94, 221481), (117, 177942), (141, 147654), (234, 88971), (282, 73827), (351, 59314), (423, 49218), (611, 34074), (631, 32994), (702, 29657), (846, 24609), (1222, 17037), (1262, 16497), (1269, 16406), (1833, 11358), (1893, 10998), (2538, 8203), (3666, 5679), (3786, 5499)]