1999403838

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{398129}}^1$

素因数の和:398174

約数の個数: 40

約数和(自身を含む): 4624678080

約数和(自身を除く): 2625274242

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 162, 186, 279, 558, 837, 1674, 2511, 5022, 398129, 796258, 1194387, 2388774, 3583161, 7166322, 10749483, 12341999, 21498966, 24683998, 32248449, 37025997, 64496898, 74051994, 111077991, 222155982, 333233973, 666467946, 999701919, 1999403838]

約数ペア:

[(1, 1999403838), (2, 999701919), (3, 666467946), (6, 333233973), (9, 222155982), (18, 111077991), (27, 74051994), (31, 64496898), (54, 37025997), (62, 32248449), (81, 24683998), (93, 21498966), (162, 12341999), (186, 10749483), (279, 7166322), (558, 3583161), (837, 2388774), (1674, 1194387), (2511, 796258), (5022, 398129)]