21558130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8521}}^1$

素因数の和:8562

約数の個数: 32

約数和(自身を含む): 44178048

約数和(自身を除く): 22619918

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8521, 17042, 42605, 85210, 93731, 187462, 195983, 391966, 468655, 937310, 979915, 1959830, 2155813, 4311626, 10779065, 21558130]

約数ペア:

[(1, 21558130), (2, 10779065), (5, 4311626), (10, 2155813), (11, 1959830), (22, 979915), (23, 937310), (46, 468655), (55, 391966), (110, 195983), (115, 187462), (230, 93731), (253, 85210), (506, 42605), (1265, 17042), (2530, 8521)]