18988506

素因数分解:

$2^1\times 3^5\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 24254694

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 89, 162, 178, 243, 267, 439, 486, 534, 801, 878, 1317, 1602, 2403, 2634, 3951, 4806, 7209, 7902, 11853, 14418, 21627, 23706, 35559, 39071, 43254, 71118, 78142, 106677, 117213, 213354, 234426, 351639, 703278, 1054917, 2109834, 3164751, 6329502, 9494253, 18988506]

約数ペア:

[(1, 18988506), (2, 9494253), (3, 6329502), (6, 3164751), (9, 2109834), (18, 1054917), (27, 703278), (54, 351639), (81, 234426), (89, 213354), (162, 117213), (178, 106677), (243, 78142), (267, 71118), (439, 43254), (486, 39071), (534, 35559), (801, 23706), (878, 21627), (1317, 14418), (1602, 11853), (2403, 7902), (2634, 7209), (3951, 4806)]