18821774

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 12199282

約数列:

[1, 2, 23, 31, 46, 62, 67, 134, 197, 394, 713, 1426, 1541, 2077, 3082, 4154, 4531, 6107, 9062, 12214, 13199, 26398, 47771, 95542, 140461, 280922, 303577, 409169, 607154, 818338, 9410887, 18821774]

約数ペア:

[(1, 18821774), (2, 9410887), (23, 818338), (31, 607154), (46, 409169), (62, 303577), (67, 280922), (134, 140461), (197, 95542), (394, 47771), (713, 26398), (1426, 13199), (1541, 12214), (2077, 9062), (3082, 6107), (4154, 4531)]