21168156747

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1\times {\mathrm{13679}}^1$

素因数の和:15315

約数の個数: 32

約数和(自身を含む): 31479321600

約数和(自身を除く): 10311164853

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 1597, 4791, 13679, 27149, 30343, 41037, 81447, 91029, 232543, 259901, 515831, 697629, 779703, 1547493, 4418317, 13254951, 21845363, 65536089, 371371171, 415061897, 1114113513, 1245185691, 7056052249, 21168156747]

約数ペア:

[(1, 21168156747), (3, 7056052249), (17, 1245185691), (19, 1114113513), (51, 415061897), (57, 371371171), (323, 65536089), (969, 21845363), (1597, 13254951), (4791, 4418317), (13679, 1547493), (27149, 779703), (30343, 697629), (41037, 515831), (81447, 259901), (91029, 232543)]