21323198

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 35858592

約数和(自身を除く): 14535394

約数列:

[1, 2, 13, 26, 41, 82, 83, 166, 241, 482, 533, 1066, 1079, 2158, 3133, 3403, 6266, 6806, 9881, 19762, 20003, 40006, 44239, 88478, 128453, 256906, 260039, 520078, 820123, 1640246, 10661599, 21323198]

約数ペア:

[(1, 21323198), (2, 10661599), (13, 1640246), (26, 820123), (41, 520078), (82, 260039), (83, 256906), (166, 128453), (241, 88478), (482, 44239), (533, 40006), (1066, 20003), (1079, 19762), (2158, 9881), (3133, 6806), (3403, 6266)]