20507508

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4787}}^1$

素因数の和:4821

約数の個数: 72

約数和(自身を含む): 62741952

約数和(自身を除く): 42234444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 4787, 9574, 14361, 19148, 28722, 33509, 43083, 57444, 67018, 81379, 86166, 100527, 134036, 162758, 172332, 201054, 244137, 301581, 325516, 402108, 488274, 569653, 603162, 732411, 976548, 1139306, 1206324, 1464822, 1708959, 2278612, 2929644, 3417918, 5126877, 6835836, 10253754, 20507508]

約数ペア:

[(1, 20507508), (2, 10253754), (3, 6835836), (4, 5126877), (6, 3417918), (7, 2929644), (9, 2278612), (12, 1708959), (14, 1464822), (17, 1206324), (18, 1139306), (21, 976548), (28, 732411), (34, 603162), (36, 569653), (42, 488274), (51, 402108), (63, 325516), (68, 301581), (84, 244137), (102, 201054), (119, 172332), (126, 162758), (153, 134036), (204, 100527), (238, 86166), (252, 81379), (306, 67018), (357, 57444), (476, 43083), (612, 33509), (714, 28722), (1071, 19148), (1428, 14361), (2142, 9574), (4284, 4787)]