18619412

素因数分解:

$2^2\times 7^3\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 39043200

約数和(自身を除く): 20423788

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 331, 343, 574, 662, 686, 1148, 1324, 1372, 2009, 2317, 4018, 4634, 8036, 9268, 13571, 14063, 16219, 27142, 28126, 32438, 54284, 56252, 64876, 94997, 113533, 189994, 227066, 379988, 454132, 664979, 1329958, 2659916, 4654853, 9309706, 18619412]

約数ペア:

[(1, 18619412), (2, 9309706), (4, 4654853), (7, 2659916), (14, 1329958), (28, 664979), (41, 454132), (49, 379988), (82, 227066), (98, 189994), (164, 113533), (196, 94997), (287, 64876), (331, 56252), (343, 54284), (574, 32438), (662, 28126), (686, 27142), (1148, 16219), (1324, 14063), (1372, 13571), (2009, 9268), (2317, 8036), (4018, 4634)]