21502404

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7757}}^1$

素因数の和:7785

約数の個数: 72

約数和(自身を含む): 67773888

約数和(自身を除く): 46271484

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, 7757, 15514, 23271, 31028, 46542, 54299, 69813, 85327, 93084, 108598, 139626, 162897, 170654, 217196, 255981, 279252, 325794, 341308, 488691, 511962, 597289, 651588, 767943, 977382, 1023924, 1194578, 1535886, 1791867, 1954764, 2389156, 3071772, 3583734, 5375601, 7167468, 10751202, 21502404]

約数ペア:

[(1, 21502404), (2, 10751202), (3, 7167468), (4, 5375601), (6, 3583734), (7, 3071772), (9, 2389156), (11, 1954764), (12, 1791867), (14, 1535886), (18, 1194578), (21, 1023924), (22, 977382), (28, 767943), (33, 651588), (36, 597289), (42, 511962), (44, 488691), (63, 341308), (66, 325794), (77, 279252), (84, 255981), (99, 217196), (126, 170654), (132, 162897), (154, 139626), (198, 108598), (231, 93084), (252, 85327), (308, 69813), (396, 54299), (462, 46542), (693, 31028), (924, 23271), (1386, 15514), (2772, 7757)]