221401971

素因数分解:

$3^3\times 7^1\times {\mathrm{947}}^1\times {\mathrm{1237}}^1$

素因数の和:2200

約数の個数: 32

約数和(自身を含む): 375559680

約数和(自身を除く): 154157709

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 947, 1237, 2841, 3711, 6629, 8523, 8659, 11133, 19887, 25569, 25977, 33399, 59661, 77931, 178983, 233793, 1171439, 3514317, 8200073, 10542951, 24600219, 31628853, 73800657, 221401971]

約数ペア:

[(1, 221401971), (3, 73800657), (7, 31628853), (9, 24600219), (21, 10542951), (27, 8200073), (63, 3514317), (189, 1171439), (947, 233793), (1237, 178983), (2841, 77931), (3711, 59661), (6629, 33399), (8523, 25977), (8659, 25569), (11133, 19887)]