21575868

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{547}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 53397120

約数和(自身を除く): 31821252

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 173, 228, 346, 519, 547, 692, 1038, 1094, 1641, 2076, 2188, 3282, 3287, 6564, 6574, 9861, 10393, 13148, 19722, 20786, 31179, 39444, 41572, 62358, 94631, 124716, 189262, 283893, 378524, 567786, 1135572, 1797989, 3595978, 5393967, 7191956, 10787934, 21575868]

約数ペア:

[(1, 21575868), (2, 10787934), (3, 7191956), (4, 5393967), (6, 3595978), (12, 1797989), (19, 1135572), (38, 567786), (57, 378524), (76, 283893), (114, 189262), (173, 124716), (228, 94631), (346, 62358), (519, 41572), (547, 39444), (692, 31179), (1038, 20786), (1094, 19722), (1641, 13148), (2076, 10393), (2188, 9861), (3282, 6574), (3287, 6564)]