205121723289

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{471619}}^1$

素因数の和:471917

約数の個数: 32

約数和(自身を含む): 316928640000

約数和(自身を除く): 111806916711

約数列:

[1, 3, 7, 21, 139, 149, 417, 447, 973, 1043, 2919, 3129, 20711, 62133, 144977, 434931, 471619, 1414857, 3301333, 9903999, 65555041, 70271231, 196665123, 210813693, 458885287, 491898617, 1376655861, 1475695851, 9767701109, 29303103327, 68373907763, 205121723289]

約数ペア:

[(1, 205121723289), (3, 68373907763), (7, 29303103327), (21, 9767701109), (139, 1475695851), (149, 1376655861), (417, 491898617), (447, 458885287), (973, 210813693), (1043, 196665123), (2919, 70271231), (3129, 65555041), (20711, 9903999), (62133, 3301333), (144977, 1414857), (434931, 471619)]