15991101

素因数分解:

$3^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 29877120

約数和(自身を除く): 13886019

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 79, 81, 119, 147, 153, 189, 237, 243, 357, 441, 459, 553, 567, 711, 833, 1071, 1323, 1343, 1377, 1659, 1701, 2133, 2499, 3213, 3871, 3969, 4029, 4131, 4977, 6399, 7497, 9401, 9639, 11613, 11907, 12087, 14931, 19197, 22491, 28203, 28917, 34839, 36261, 44793, 65807, 67473, 84609, 104517, 108783, 134379, 197421, 202419, 253827, 313551, 326349, 592263, 761481, 940653, 1776789, 2284443, 5330367, 15991101]

約数ペア:

[(1, 15991101), (3, 5330367), (7, 2284443), (9, 1776789), (17, 940653), (21, 761481), (27, 592263), (49, 326349), (51, 313551), (63, 253827), (79, 202419), (81, 197421), (119, 134379), (147, 108783), (153, 104517), (189, 84609), (237, 67473), (243, 65807), (357, 44793), (441, 36261), (459, 34839), (553, 28917), (567, 28203), (711, 22491), (833, 19197), (1071, 14931), (1323, 12087), (1343, 11907), (1377, 11613), (1659, 9639), (1701, 9401), (2133, 7497), (2499, 6399), (3213, 4977), (3871, 4131), (3969, 4029)]