247740591

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1\times {\mathrm{1229}}^1$

素因数の和:1599

約数の個数: 32

約数和(自身を含む): 392025600

約数和(自身を除く): 144285009

約数列:

[1, 3, 7, 21, 29, 87, 203, 331, 609, 993, 1229, 2317, 3687, 6951, 8603, 9599, 25809, 28797, 35641, 67193, 106923, 201579, 249487, 406799, 748461, 1220397, 2847593, 8542779, 11797171, 35391513, 82580197, 247740591]

約数ペア:

[(1, 247740591), (3, 82580197), (7, 35391513), (21, 11797171), (29, 8542779), (87, 2847593), (203, 1220397), (331, 748461), (609, 406799), (993, 249487), (1229, 201579), (2317, 106923), (3687, 67193), (6951, 35641), (8603, 28797), (9599, 25809)]