21121130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{701}}^1$

素因数の和:862

約数の個数: 32

約数和(自身を含む): 40030848

約数和(自身を除く): 18909718

約数列:

[1, 2, 5, 10, 23, 46, 115, 131, 230, 262, 655, 701, 1310, 1402, 3013, 3505, 6026, 7010, 15065, 16123, 30130, 32246, 80615, 91831, 161230, 183662, 459155, 918310, 2112113, 4224226, 10560565, 21121130]

約数ペア:

[(1, 21121130), (2, 10560565), (5, 4224226), (10, 2112113), (23, 918310), (46, 459155), (115, 183662), (131, 161230), (230, 91831), (262, 80615), (655, 32246), (701, 30130), (1310, 16123), (1402, 15065), (3013, 7010), (3505, 6026)]