21035690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1571}}^1$

素因数の和:1694

約数の個数: 32

約数和(自身を含む): 41198976

約数和(自身を除く): 20163286

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 1571, 2678, 3142, 6695, 7855, 13390, 15710, 20423, 40846, 102115, 161813, 204230, 323626, 809065, 1618130, 2103569, 4207138, 10517845, 21035690]

約数ペア:

[(1, 21035690), (2, 10517845), (5, 4207138), (10, 2103569), (13, 1618130), (26, 809065), (65, 323626), (103, 204230), (130, 161813), (206, 102115), (515, 40846), (1030, 20423), (1339, 15710), (1571, 13390), (2678, 7855), (3142, 6695)]