18401175

素因数分解:

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

素因数の和:271

約数の個数: 72

約数和(自身を含む): 36966384

約数和(自身を除く): 18565209

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 233, 243, 325, 351, 405, 585, 675, 699, 975, 1053, 1165, 1215, 1755, 2025, 2097, 2925, 3029, 3159, 3495, 5265, 5825, 6075, 6291, 8775, 9087, 10485, 15145, 15795, 17475, 18873, 26325, 27261, 31455, 45435, 52425, 56619, 75725, 78975, 81783, 94365, 136305, 157275, 227175, 245349, 283095, 408915, 471825, 681525, 736047, 1226745, 1415475, 2044575, 3680235, 6133725, 18401175]

約数ペア:

[(1, 18401175), (3, 6133725), (5, 3680235), (9, 2044575), (13, 1415475), (15, 1226745), (25, 736047), (27, 681525), (39, 471825), (45, 408915), (65, 283095), (75, 245349), (81, 227175), (117, 157275), (135, 136305), (195, 94365), (225, 81783), (233, 78975), (243, 75725), (325, 56619), (351, 52425), (405, 45435), (585, 31455), (675, 27261), (699, 26325), (975, 18873), (1053, 17475), (1165, 15795), (1215, 15145), (1755, 10485), (2025, 9087), (2097, 8775), (2925, 6291), (3029, 6075), (3159, 5825), (3495, 5265)]