18897538

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 32325120

約数和(自身を除く): 13427582

約数列:

[1, 2, 11, 22, 31, 62, 121, 229, 242, 341, 458, 682, 1331, 2519, 2662, 3751, 5038, 7099, 7502, 14198, 27709, 41261, 55418, 78089, 82522, 156178, 304799, 609598, 858979, 1717958, 9448769, 18897538]

約数ペア:

[(1, 18897538), (2, 9448769), (11, 1717958), (22, 858979), (31, 609598), (62, 304799), (121, 156178), (229, 82522), (242, 78089), (341, 55418), (458, 41261), (682, 27709), (1331, 14198), (2519, 7502), (2662, 7099), (3751, 5038)]