221748615

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1291}}^1$

素因数の和:1660

約数の個数: 48

約数和(自身を含む): 420840576

約数和(自身を除く): 199091961

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 347, 495, 1041, 1291, 1735, 3123, 3817, 3873, 5205, 6455, 11451, 11619, 14201, 15615, 19085, 19365, 34353, 42603, 57255, 58095, 71005, 127809, 171765, 213015, 447977, 639045, 1343931, 2239885, 4031793, 4927747, 6719655, 14783241, 20158965, 24638735, 44349723, 73916205, 221748615]

約数ペア:

[(1, 221748615), (3, 73916205), (5, 44349723), (9, 24638735), (11, 20158965), (15, 14783241), (33, 6719655), (45, 4927747), (55, 4031793), (99, 2239885), (165, 1343931), (347, 639045), (495, 447977), (1041, 213015), (1291, 171765), (1735, 127809), (3123, 71005), (3817, 58095), (3873, 57255), (5205, 42603), (6455, 34353), (11451, 19365), (11619, 19085), (14201, 15615)]