20821668

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2083}}^1$

素因数の和:2121

約数の個数: 72

約数和(自身を含む): 59869152

約数和(自身を除く): 39047484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 68, 84, 98, 102, 119, 147, 196, 204, 238, 294, 357, 476, 588, 714, 833, 1428, 1666, 2083, 2499, 3332, 4166, 4998, 6249, 8332, 9996, 12498, 14581, 24996, 29162, 35411, 43743, 58324, 70822, 87486, 102067, 106233, 141644, 174972, 204134, 212466, 247877, 306201, 408268, 424932, 495754, 612402, 743631, 991508, 1224804, 1487262, 1735139, 2974524, 3470278, 5205417, 6940556, 10410834, 20821668]

約数ペア:

[(1, 20821668), (2, 10410834), (3, 6940556), (4, 5205417), (6, 3470278), (7, 2974524), (12, 1735139), (14, 1487262), (17, 1224804), (21, 991508), (28, 743631), (34, 612402), (42, 495754), (49, 424932), (51, 408268), (68, 306201), (84, 247877), (98, 212466), (102, 204134), (119, 174972), (147, 141644), (196, 106233), (204, 102067), (238, 87486), (294, 70822), (357, 58324), (476, 43743), (588, 35411), (714, 29162), (833, 24996), (1428, 14581), (1666, 12498), (2083, 9996), (2499, 8332), (3332, 6249), (4166, 4998)]