21012033203

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1\times {\mathrm{2099}}^1$

素因数の和:2867

約数の個数: 32

約数和(自身を含む): 25367731200

約数和(自身を除く): 4355697997

約数列:

[1, 7, 23, 97, 161, 641, 679, 2099, 2231, 4487, 14693, 14743, 15617, 48277, 62177, 103201, 203603, 337939, 435239, 1345459, 1425221, 1430071, 4682869, 9418213, 10010497, 30945557, 32780083, 130509523, 216618899, 913566661, 3001719029, 21012033203]

約数ペア:

[(1, 21012033203), (7, 3001719029), (23, 913566661), (97, 216618899), (161, 130509523), (641, 32780083), (679, 30945557), (2099, 10010497), (2231, 9418213), (4487, 4682869), (14693, 1430071), (14743, 1425221), (15617, 1345459), (48277, 435239), (62177, 337939), (103201, 203603)]