20979036

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1949}}^1$

素因数の和:1995

約数の個数: 72

約数和(自身を含む): 59623200

約数和(自身を除く): 38644164

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 36, 39, 46, 52, 69, 78, 92, 117, 138, 156, 207, 234, 276, 299, 414, 468, 598, 828, 897, 1196, 1794, 1949, 2691, 3588, 3898, 5382, 5847, 7796, 10764, 11694, 17541, 23388, 25337, 35082, 44827, 50674, 70164, 76011, 89654, 101348, 134481, 152022, 179308, 228033, 268962, 304044, 403443, 456066, 537924, 582751, 806886, 912132, 1165502, 1613772, 1748253, 2331004, 3496506, 5244759, 6993012, 10489518, 20979036]

約数ペア:

[(1, 20979036), (2, 10489518), (3, 6993012), (4, 5244759), (6, 3496506), (9, 2331004), (12, 1748253), (13, 1613772), (18, 1165502), (23, 912132), (26, 806886), (36, 582751), (39, 537924), (46, 456066), (52, 403443), (69, 304044), (78, 268962), (92, 228033), (117, 179308), (138, 152022), (156, 134481), (207, 101348), (234, 89654), (276, 76011), (299, 70164), (414, 50674), (468, 44827), (598, 35082), (828, 25337), (897, 23388), (1196, 17541), (1794, 11694), (1949, 10764), (2691, 7796), (3588, 5847), (3898, 5382)]