28778031

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 44015040

約数和(自身を除く): 15237009

約数列:

[1, 3, 9, 27, 61, 101, 173, 183, 303, 519, 549, 909, 1557, 1647, 2727, 4671, 6161, 10553, 17473, 18483, 31659, 52419, 55449, 94977, 157257, 166347, 284931, 471771, 1065853, 3197559, 9592677, 28778031]

約数ペア:

[(1, 28778031), (3, 9592677), (9, 3197559), (27, 1065853), (61, 471771), (101, 284931), (173, 166347), (183, 157257), (303, 94977), (519, 55449), (549, 52419), (909, 31659), (1557, 18483), (1647, 17473), (2727, 10553), (4671, 6161)]