20511972

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1133

約数の個数: 72

約数和(自身を含む): 57253560

約数和(自身を除く): 36741588

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 41, 52, 78, 82, 117, 123, 156, 164, 234, 246, 369, 468, 492, 533, 738, 1066, 1069, 1476, 1599, 2132, 2138, 3198, 3207, 4276, 4797, 6396, 6414, 9594, 9621, 12828, 13897, 19188, 19242, 27794, 38484, 41691, 43829, 55588, 83382, 87658, 125073, 131487, 166764, 175316, 250146, 262974, 394461, 500292, 525948, 569777, 788922, 1139554, 1577844, 1709331, 2279108, 3418662, 5127993, 6837324, 10255986, 20511972]

約数ペア:

[(1, 20511972), (2, 10255986), (3, 6837324), (4, 5127993), (6, 3418662), (9, 2279108), (12, 1709331), (13, 1577844), (18, 1139554), (26, 788922), (36, 569777), (39, 525948), (41, 500292), (52, 394461), (78, 262974), (82, 250146), (117, 175316), (123, 166764), (156, 131487), (164, 125073), (234, 87658), (246, 83382), (369, 55588), (468, 43829), (492, 41691), (533, 38484), (738, 27794), (1066, 19242), (1069, 19188), (1476, 13897), (1599, 12828), (2132, 9621), (2138, 9594), (3198, 6414), (3207, 6396), (4276, 4797)]