21216834

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:895

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 27305406

約数列:

[1, 2, 3, 6, 9, 18, 31, 47, 62, 93, 94, 141, 186, 279, 282, 423, 558, 809, 846, 1457, 1618, 2427, 2914, 4371, 4854, 7281, 8742, 13113, 14562, 25079, 26226, 38023, 50158, 75237, 76046, 114069, 150474, 225711, 228138, 342207, 451422, 684414, 1178713, 2357426, 3536139, 7072278, 10608417, 21216834]

約数ペア:

[(1, 21216834), (2, 10608417), (3, 7072278), (6, 3536139), (9, 2357426), (18, 1178713), (31, 684414), (47, 451422), (62, 342207), (93, 228138), (94, 225711), (141, 150474), (186, 114069), (279, 76046), (282, 75237), (423, 50158), (558, 38023), (809, 26226), (846, 25079), (1457, 14562), (1618, 13113), (2427, 8742), (2914, 7281), (4371, 4854)]