28991497947

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{953}}^1\times {\mathrm{7517}}^1$

素因数の和:8563

約数の個数: 32

約数和(自身を含む): 41311710720

約数和(自身を除く): 12320212773

約数列:

[1, 3, 19, 57, 71, 213, 953, 1349, 2859, 4047, 7517, 18107, 22551, 54321, 67663, 142823, 202989, 428469, 533707, 1285597, 1601121, 3856791, 7163701, 10140433, 21491103, 30421299, 136110319, 408330957, 508622771, 1525868313, 9663832649, 28991497947]

約数ペア:

[(1, 28991497947), (3, 9663832649), (19, 1525868313), (57, 508622771), (71, 408330957), (213, 136110319), (953, 30421299), (1349, 21491103), (2859, 10140433), (4047, 7163701), (7517, 3856791), (18107, 1601121), (22551, 1285597), (54321, 533707), (67663, 428469), (142823, 202989)]