21930012

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1067

約数の個数: 72

約数和(自身を含む): 61029696

約数和(自身を除く): 39099684

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 47, 52, 78, 94, 117, 141, 156, 188, 234, 282, 423, 468, 564, 611, 846, 997, 1222, 1692, 1833, 1994, 2444, 2991, 3666, 3988, 5499, 5982, 7332, 8973, 10998, 11964, 12961, 17946, 21996, 25922, 35892, 38883, 46859, 51844, 77766, 93718, 116649, 140577, 155532, 187436, 233298, 281154, 421731, 466596, 562308, 609167, 843462, 1218334, 1686924, 1827501, 2436668, 3655002, 5482503, 7310004, 10965006, 21930012]

約数ペア:

[(1, 21930012), (2, 10965006), (3, 7310004), (4, 5482503), (6, 3655002), (9, 2436668), (12, 1827501), (13, 1686924), (18, 1218334), (26, 843462), (36, 609167), (39, 562308), (47, 466596), (52, 421731), (78, 281154), (94, 233298), (117, 187436), (141, 155532), (156, 140577), (188, 116649), (234, 93718), (282, 77766), (423, 51844), (468, 46859), (564, 38883), (611, 35892), (846, 25922), (997, 21996), (1222, 17946), (1692, 12961), (1833, 11964), (1994, 10998), (2444, 8973), (2991, 7332), (3666, 5982), (3988, 5499)]