18219279

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 27518400

約数和(自身を除く): 9299121

約数列:

[1, 3, 13, 29, 39, 87, 89, 181, 267, 377, 543, 1131, 1157, 2353, 2581, 3471, 5249, 7059, 7743, 15747, 16109, 33553, 48327, 68237, 100659, 204711, 209417, 467161, 628251, 1401483, 6073093, 18219279]

約数ペア:

[(1, 18219279), (3, 6073093), (13, 1401483), (29, 628251), (39, 467161), (87, 209417), (89, 204711), (181, 100659), (267, 68237), (377, 48327), (543, 33553), (1131, 16109), (1157, 15747), (2353, 7743), (2581, 7059), (3471, 5249)]