21888630

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:523

約数の個数: 80

約数和(自身を含む): 59955984

約数和(自身を除く): 38067354

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 81, 90, 122, 135, 162, 183, 270, 305, 366, 405, 443, 549, 610, 810, 886, 915, 1098, 1329, 1647, 1830, 2215, 2658, 2745, 3294, 3987, 4430, 4941, 5490, 6645, 7974, 8235, 9882, 11961, 13290, 16470, 19935, 23922, 24705, 27023, 35883, 39870, 49410, 54046, 59805, 71766, 81069, 119610, 135115, 162138, 179415, 243207, 270230, 358830, 405345, 486414, 729621, 810690, 1216035, 1459242, 2188863, 2432070, 3648105, 4377726, 7296210, 10944315, 21888630]

約数ペア:

[(1, 21888630), (2, 10944315), (3, 7296210), (5, 4377726), (6, 3648105), (9, 2432070), (10, 2188863), (15, 1459242), (18, 1216035), (27, 810690), (30, 729621), (45, 486414), (54, 405345), (61, 358830), (81, 270230), (90, 243207), (122, 179415), (135, 162138), (162, 135115), (183, 119610), (270, 81069), (305, 71766), (366, 59805), (405, 54046), (443, 49410), (549, 39870), (610, 35883), (810, 27023), (886, 24705), (915, 23922), (1098, 19935), (1329, 16470), (1647, 13290), (1830, 11961), (2215, 9882), (2658, 8235), (2745, 7974), (3294, 6645), (3987, 5490), (4430, 4941)]