51987405

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1993}}^1$

素因数の和:2085

約数の個数: 32

約数和(自身を含む): 87289344

約数和(自身を除く): 35301939

約数列:

[1, 3, 5, 15, 37, 47, 111, 141, 185, 235, 555, 705, 1739, 1993, 5217, 5979, 8695, 9965, 26085, 29895, 73741, 93671, 221223, 281013, 368705, 468355, 1106115, 1405065, 3465827, 10397481, 17329135, 51987405]

約数ペア:

[(1, 51987405), (3, 17329135), (5, 10397481), (15, 3465827), (37, 1405065), (47, 1106115), (111, 468355), (141, 368705), (185, 281013), (235, 221223), (555, 93671), (705, 73741), (1739, 29895), (1993, 26085), (5217, 9965), (5979, 8695)]