20920284

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7547}}^1$

素因数の和:7575

約数の個数: 72

約数和(自身を含む): 65939328

約数和(自身を除く): 45019044

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7547, 15094, 22641, 30188, 45282, 52829, 67923, 83017, 90564, 105658, 135846, 158487, 166034, 211316, 249051, 271692, 316974, 332068, 475461, 498102, 581119, 633948, 747153, 950922, 996204, 1162238, 1494306, 1743357, 1901844, 2324476, 2988612, 3486714, 5230071, 6973428, 10460142, 20920284]

約数ペア:

[(1, 20920284), (2, 10460142), (3, 6973428), (4, 5230071), (6, 3486714), (7, 2988612), (9, 2324476), (11, 1901844), (12, 1743357), (14, 1494306), (18, 1162238), (21, 996204), (22, 950922), (28, 747153), (33, 633948), (36, 581119), (42, 498102), (44, 475461), (63, 332068), (66, 316974), (77, 271692), (84, 249051), (99, 211316), (126, 166034), (132, 158487), (154, 135846), (198, 105658), (231, 90564), (252, 83017), (308, 67923), (396, 52829), (462, 45282), (693, 30188), (924, 22641), (1386, 15094), (2772, 7547)]