21385998

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 50526720

約数和(自身を除く): 29140722

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 67, 69, 134, 138, 201, 207, 257, 402, 414, 514, 603, 621, 771, 1206, 1242, 1541, 1542, 1809, 2313, 3082, 3618, 4623, 4626, 5911, 6939, 9246, 11822, 13869, 13878, 17219, 17733, 27738, 34438, 35466, 41607, 51657, 53199, 83214, 103314, 106398, 154971, 159597, 309942, 319194, 396037, 464913, 792074, 929826, 1188111, 2376222, 3564333, 7128666, 10692999, 21385998]

約数ペア:

[(1, 21385998), (2, 10692999), (3, 7128666), (6, 3564333), (9, 2376222), (18, 1188111), (23, 929826), (27, 792074), (46, 464913), (54, 396037), (67, 319194), (69, 309942), (134, 159597), (138, 154971), (201, 106398), (207, 103314), (257, 83214), (402, 53199), (414, 51657), (514, 41607), (603, 35466), (621, 34438), (771, 27738), (1206, 17733), (1242, 17219), (1541, 13878), (1542, 13869), (1809, 11822), (2313, 9246), (3082, 6939), (3618, 5911), (4623, 4626)]