19784085

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:917

約数の個数: 32

約数和(自身を含む): 33306240

約数和(自身を除く): 13522155

約数列:

[1, 3, 5, 15, 37, 43, 111, 129, 185, 215, 555, 645, 829, 1591, 2487, 4145, 4773, 7955, 12435, 23865, 30673, 35647, 92019, 106941, 153365, 178235, 460095, 534705, 1318939, 3956817, 6594695, 19784085]

約数ペア:

[(1, 19784085), (3, 6594695), (5, 3956817), (15, 1318939), (37, 534705), (43, 460095), (111, 178235), (129, 153365), (185, 106941), (215, 92019), (555, 35647), (645, 30673), (829, 23865), (1591, 12435), (2487, 7955), (4145, 4773)]