19897605

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 43819776

約数和(自身を除く): 23922171

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 43, 45, 63, 65, 91, 105, 113, 117, 129, 195, 215, 273, 301, 315, 339, 387, 455, 559, 565, 585, 645, 791, 819, 903, 1017, 1365, 1469, 1505, 1677, 1695, 1935, 2373, 2709, 2795, 3913, 3955, 4095, 4407, 4515, 4859, 5031, 5085, 7119, 7345, 8385, 10283, 11739, 11865, 13221, 13545, 14577, 19565, 22035, 24295, 25155, 30849, 34013, 35217, 35595, 43731, 51415, 58695, 63167, 66105, 72885, 92547, 102039, 154245, 170065, 176085, 189501, 218655, 306117, 315835, 442169, 462735, 510195, 568503, 947505, 1326507, 1530585, 2210845, 2842515, 3979521, 6632535, 19897605]

約数ペア:

[(1, 19897605), (3, 6632535), (5, 3979521), (7, 2842515), (9, 2210845), (13, 1530585), (15, 1326507), (21, 947505), (35, 568503), (39, 510195), (43, 462735), (45, 442169), (63, 315835), (65, 306117), (91, 218655), (105, 189501), (113, 176085), (117, 170065), (129, 154245), (195, 102039), (215, 92547), (273, 72885), (301, 66105), (315, 63167), (339, 58695), (387, 51415), (455, 43731), (559, 35595), (565, 35217), (585, 34013), (645, 30849), (791, 25155), (819, 24295), (903, 22035), (1017, 19565), (1365, 14577), (1469, 13545), (1505, 13221), (1677, 11865), (1695, 11739), (1935, 10283), (2373, 8385), (2709, 7345), (2795, 7119), (3913, 5085), (3955, 5031), (4095, 4859), (4407, 4515)]