21945105

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 49061376

約数和(自身を除く): 27116271

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 23, 35, 39, 45, 63, 65, 69, 91, 105, 115, 117, 161, 195, 207, 233, 273, 299, 315, 345, 455, 483, 585, 699, 805, 819, 897, 1035, 1165, 1365, 1449, 1495, 1631, 2093, 2097, 2415, 2691, 3029, 3495, 4095, 4485, 4893, 5359, 6279, 7245, 8155, 9087, 10465, 10485, 13455, 14679, 15145, 16077, 18837, 21203, 24465, 26795, 27261, 31395, 37513, 45435, 48231, 63609, 69667, 73395, 80385, 94185, 106015, 112539, 136305, 187565, 190827, 209001, 241155, 318045, 337617, 348335, 487669, 562695, 627003, 954135, 1045005, 1463007, 1688085, 2438345, 3135015, 4389021, 7315035, 21945105]

約数ペア:

[(1, 21945105), (3, 7315035), (5, 4389021), (7, 3135015), (9, 2438345), (13, 1688085), (15, 1463007), (21, 1045005), (23, 954135), (35, 627003), (39, 562695), (45, 487669), (63, 348335), (65, 337617), (69, 318045), (91, 241155), (105, 209001), (115, 190827), (117, 187565), (161, 136305), (195, 112539), (207, 106015), (233, 94185), (273, 80385), (299, 73395), (315, 69667), (345, 63609), (455, 48231), (483, 45435), (585, 37513), (699, 31395), (805, 27261), (819, 26795), (897, 24465), (1035, 21203), (1165, 18837), (1365, 16077), (1449, 15145), (1495, 14679), (1631, 13455), (2093, 10485), (2097, 10465), (2415, 9087), (2691, 8155), (3029, 7245), (3495, 6279), (4095, 5359), (4485, 4893)]