218703786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 508723200

約数和(自身を除く): 290019414

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 191, 199, 274, 382, 398, 411, 573, 597, 822, 959, 1146, 1194, 1337, 1393, 1918, 2674, 2786, 2877, 4011, 4179, 5754, 8022, 8358, 26167, 27263, 38009, 52334, 54526, 76018, 78501, 81789, 114027, 157002, 163578, 183169, 190841, 228054, 266063, 366338, 381682, 532126, 549507, 572523, 798189, 1099014, 1145046, 1596378, 5207233, 10414466, 15621699, 31243398, 36450631, 72901262, 109351893, 218703786]

約数ペア:

[(1, 218703786), (2, 109351893), (3, 72901262), (6, 36450631), (7, 31243398), (14, 15621699), (21, 10414466), (42, 5207233), (137, 1596378), (191, 1145046), (199, 1099014), (274, 798189), (382, 572523), (398, 549507), (411, 532126), (573, 381682), (597, 366338), (822, 266063), (959, 228054), (1146, 190841), (1194, 183169), (1337, 163578), (1393, 157002), (1918, 114027), (2674, 81789), (2786, 78501), (2877, 76018), (4011, 54526), (4179, 52334), (5754, 38009), (8022, 27263), (8358, 26167)]