18378906

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 46400256

約数和(自身を除く): 28021350

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 78, 82, 91, 123, 182, 246, 273, 287, 533, 546, 574, 821, 861, 1066, 1599, 1642, 1722, 2463, 3198, 3731, 4926, 5747, 7462, 10673, 11193, 11494, 17241, 21346, 22386, 32019, 33661, 34482, 64038, 67322, 74711, 100983, 149422, 201966, 224133, 235627, 437593, 448266, 471254, 706881, 875186, 1312779, 1413762, 2625558, 3063151, 6126302, 9189453, 18378906]

約数ペア:

[(1, 18378906), (2, 9189453), (3, 6126302), (6, 3063151), (7, 2625558), (13, 1413762), (14, 1312779), (21, 875186), (26, 706881), (39, 471254), (41, 448266), (42, 437593), (78, 235627), (82, 224133), (91, 201966), (123, 149422), (182, 100983), (246, 74711), (273, 67322), (287, 64038), (533, 34482), (546, 33661), (574, 32019), (821, 22386), (861, 21346), (1066, 17241), (1599, 11494), (1642, 11193), (1722, 10673), (2463, 7462), (3198, 5747), (3731, 4926)]