388754877

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{769}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 639038400

約数和(自身を除く): 250283523

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 181, 399, 543, 769, 931, 1267, 2307, 2793, 3439, 3801, 5383, 8869, 10317, 14611, 16149, 24073, 26607, 37681, 43833, 72219, 102277, 113043, 139189, 168511, 306831, 417567, 505533, 715939, 974323, 2147817, 2644591, 2922969, 6820261, 7933773, 18512137, 20460783, 55536411, 129584959, 388754877]

約数ペア:

[(1, 388754877), (3, 129584959), (7, 55536411), (19, 20460783), (21, 18512137), (49, 7933773), (57, 6820261), (133, 2922969), (147, 2644591), (181, 2147817), (399, 974323), (543, 715939), (769, 505533), (931, 417567), (1267, 306831), (2307, 168511), (2793, 139189), (3439, 113043), (3801, 102277), (5383, 72219), (8869, 43833), (10317, 37681), (14611, 26607), (16149, 24073)]