28951131

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 43819776

約数和(自身を除く): 14868645

約数列:

[1, 3, 11, 33, 37, 111, 131, 181, 393, 407, 543, 1221, 1441, 1991, 4323, 4847, 5973, 6697, 14541, 20091, 23711, 53317, 71133, 73667, 159951, 221001, 260821, 782463, 877307, 2631921, 9650377, 28951131]

約数ペア:

[(1, 28951131), (3, 9650377), (11, 2631921), (33, 877307), (37, 782463), (111, 260821), (131, 221001), (181, 159951), (393, 73667), (407, 71133), (543, 53317), (1221, 23711), (1441, 20091), (1991, 14541), (4323, 6697), (4847, 5973)]