20266972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 40602240

約数和(自身を除く): 20335268

約数列:

[1, 2, 4, 11, 22, 37, 44, 59, 74, 118, 148, 211, 236, 407, 422, 649, 814, 844, 1298, 1628, 2183, 2321, 2596, 4366, 4642, 7807, 8732, 9284, 12449, 15614, 24013, 24898, 31228, 48026, 49796, 85877, 96052, 136939, 171754, 273878, 343508, 460613, 547756, 921226, 1842452, 5066743, 10133486, 20266972]

約数ペア:

[(1, 20266972), (2, 10133486), (4, 5066743), (11, 1842452), (22, 921226), (37, 547756), (44, 460613), (59, 343508), (74, 273878), (118, 171754), (148, 136939), (211, 96052), (236, 85877), (407, 49796), (422, 48026), (649, 31228), (814, 24898), (844, 24013), (1298, 15614), (1628, 12449), (2183, 9284), (2321, 8732), (2596, 7807), (4366, 4642)]