28964481

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^2$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 50972544

約数和(自身を除く): 22008063

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 79, 91, 119, 221, 237, 273, 357, 553, 663, 1027, 1343, 1547, 1659, 3081, 4029, 4641, 6241, 7189, 9401, 17459, 18723, 21567, 28203, 43687, 52377, 81133, 106097, 122213, 131061, 243399, 318291, 366639, 567931, 742679, 1379261, 1703793, 2228037, 4137783, 9654827, 28964481]

約数ペア:

[(1, 28964481), (3, 9654827), (7, 4137783), (13, 2228037), (17, 1703793), (21, 1379261), (39, 742679), (51, 567931), (79, 366639), (91, 318291), (119, 243399), (221, 131061), (237, 122213), (273, 106097), (357, 81133), (553, 52377), (663, 43687), (1027, 28203), (1343, 21567), (1547, 18723), (1659, 17459), (3081, 9401), (4029, 7189), (4641, 6241)]