15960399

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 29352960

約数和(自身を除く): 13392561

約数列:

[1, 3, 7, 13, 17, 19, 21, 39, 51, 57, 91, 119, 133, 181, 221, 247, 273, 323, 357, 399, 543, 663, 741, 969, 1267, 1547, 1729, 2261, 2353, 3077, 3439, 3801, 4199, 4641, 5187, 6783, 7059, 9231, 10317, 12597, 16471, 21539, 24073, 29393, 40001, 44707, 49413, 58463, 64617, 72219, 88179, 120003, 134121, 175389, 280007, 312949, 409241, 760019, 840021, 938847, 1227723, 2280057, 5320133, 15960399]

約数ペア:

[(1, 15960399), (3, 5320133), (7, 2280057), (13, 1227723), (17, 938847), (19, 840021), (21, 760019), (39, 409241), (51, 312949), (57, 280007), (91, 175389), (119, 134121), (133, 120003), (181, 88179), (221, 72219), (247, 64617), (273, 58463), (323, 49413), (357, 44707), (399, 40001), (543, 29393), (663, 24073), (741, 21539), (969, 16471), (1267, 12597), (1547, 10317), (1729, 9231), (2261, 7059), (2353, 6783), (3077, 5187), (3439, 4641), (3801, 4199)]