19975384

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{919}}^1$

素因数の和:968

約数の個数: 64

約数和(自身を含む): 46368000

約数和(自身を除く): 26392616

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 209, 247, 286, 418, 494, 572, 836, 919, 988, 1144, 1672, 1838, 1976, 2717, 3676, 5434, 7352, 10109, 10868, 11947, 17461, 20218, 21736, 23894, 34922, 40436, 47788, 69844, 80872, 95576, 131417, 139688, 192071, 226993, 262834, 384142, 453986, 525668, 768284, 907972, 1051336, 1536568, 1815944, 2496923, 4993846, 9987692, 19975384]

約数ペア:

[(1, 19975384), (2, 9987692), (4, 4993846), (8, 2496923), (11, 1815944), (13, 1536568), (19, 1051336), (22, 907972), (26, 768284), (38, 525668), (44, 453986), (52, 384142), (76, 262834), (88, 226993), (104, 192071), (143, 139688), (152, 131417), (209, 95576), (247, 80872), (286, 69844), (418, 47788), (494, 40436), (572, 34922), (836, 23894), (919, 21736), (988, 20218), (1144, 17461), (1672, 11947), (1838, 10868), (1976, 10109), (2717, 7352), (3676, 5434)]