21233830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 22104410

約数列:

[1, 2, 5, 10, 19, 23, 38, 43, 46, 86, 95, 113, 115, 190, 215, 226, 230, 430, 437, 565, 817, 874, 989, 1130, 1634, 1978, 2147, 2185, 2599, 4085, 4294, 4370, 4859, 4945, 5198, 8170, 9718, 9890, 10735, 12995, 18791, 21470, 24295, 25990, 37582, 48590, 49381, 92321, 93955, 98762, 111757, 184642, 187910, 223514, 246905, 461605, 493810, 558785, 923210, 1117570, 2123383, 4246766, 10616915, 21233830]

約数ペア:

[(1, 21233830), (2, 10616915), (5, 4246766), (10, 2123383), (19, 1117570), (23, 923210), (38, 558785), (43, 493810), (46, 461605), (86, 246905), (95, 223514), (113, 187910), (115, 184642), (190, 111757), (215, 98762), (226, 93955), (230, 92321), (430, 49381), (437, 48590), (565, 37582), (817, 25990), (874, 24295), (989, 21470), (1130, 18791), (1634, 12995), (1978, 10735), (2147, 9890), (2185, 9718), (2599, 8170), (4085, 5198), (4294, 4945), (4370, 4859)]