21211372

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3067}}^1$

素因数の和:3110

約数の個数: 48

約数和(自身を含む): 48106240

約数和(自身を除く): 26894868

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 3067, 3458, 6134, 6916, 12268, 21469, 39871, 42938, 58273, 79742, 85876, 116546, 159484, 233092, 279097, 407911, 558194, 757549, 815822, 1116388, 1515098, 1631644, 3030196, 5302843, 10605686, 21211372]

約数ペア:

[(1, 21211372), (2, 10605686), (4, 5302843), (7, 3030196), (13, 1631644), (14, 1515098), (19, 1116388), (26, 815822), (28, 757549), (38, 558194), (52, 407911), (76, 279097), (91, 233092), (133, 159484), (182, 116546), (247, 85876), (266, 79742), (364, 58273), (494, 42938), (532, 39871), (988, 21469), (1729, 12268), (3067, 6916), (3458, 6134)]