21748545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 47803392

約数和(自身を除く): 26054847

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 47, 63, 65, 91, 105, 113, 117, 141, 195, 235, 273, 315, 329, 339, 423, 455, 565, 585, 611, 705, 791, 819, 987, 1017, 1365, 1469, 1645, 1695, 1833, 2115, 2373, 2961, 3055, 3955, 4095, 4277, 4407, 4935, 5085, 5311, 5499, 7119, 7345, 9165, 10283, 11865, 12831, 13221, 14805, 15933, 21385, 22035, 26555, 27495, 30849, 35595, 37177, 38493, 47799, 51415, 64155, 66105, 69043, 79665, 92547, 111531, 154245, 185885, 192465, 207129, 238995, 334593, 345215, 462735, 483301, 557655, 621387, 1035645, 1449903, 1672965, 2416505, 3106935, 4349709, 7249515, 21748545]

約数ペア:

[(1, 21748545), (3, 7249515), (5, 4349709), (7, 3106935), (9, 2416505), (13, 1672965), (15, 1449903), (21, 1035645), (35, 621387), (39, 557655), (45, 483301), (47, 462735), (63, 345215), (65, 334593), (91, 238995), (105, 207129), (113, 192465), (117, 185885), (141, 154245), (195, 111531), (235, 92547), (273, 79665), (315, 69043), (329, 66105), (339, 64155), (423, 51415), (455, 47799), (565, 38493), (585, 37177), (611, 35595), (705, 30849), (791, 27495), (819, 26555), (987, 22035), (1017, 21385), (1365, 15933), (1469, 14805), (1645, 13221), (1695, 12831), (1833, 11865), (2115, 10283), (2373, 9165), (2961, 7345), (3055, 7119), (3955, 5499), (4095, 5311), (4277, 5085), (4407, 4935)]