19404954

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 45175680

約数和(自身を除く): 25770726

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 61, 86, 122, 129, 137, 183, 258, 274, 366, 387, 411, 549, 774, 822, 1098, 1161, 1233, 1647, 2322, 2466, 2623, 3294, 3699, 5246, 5891, 7398, 7869, 8357, 11782, 15738, 16714, 17673, 23607, 25071, 35346, 47214, 50142, 53019, 70821, 75213, 106038, 141642, 150426, 159057, 225639, 318114, 359351, 451278, 718702, 1078053, 2156106, 3234159, 6468318, 9702477, 19404954]

約数ペア:

[(1, 19404954), (2, 9702477), (3, 6468318), (6, 3234159), (9, 2156106), (18, 1078053), (27, 718702), (43, 451278), (54, 359351), (61, 318114), (86, 225639), (122, 159057), (129, 150426), (137, 141642), (183, 106038), (258, 75213), (274, 70821), (366, 53019), (387, 50142), (411, 47214), (549, 35346), (774, 25071), (822, 23607), (1098, 17673), (1161, 16714), (1233, 15738), (1647, 11782), (2322, 8357), (2466, 7869), (2623, 7398), (3294, 5891), (3699, 5246)]