221005917

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 357888960

約数和(自身を除く): 136883043

約数列:

[1, 3, 9, 11, 33, 59, 99, 157, 177, 241, 471, 531, 649, 723, 1413, 1727, 1947, 2169, 2651, 5181, 5841, 7953, 9263, 14219, 15543, 23859, 27789, 37837, 42657, 83367, 101893, 113511, 127971, 156409, 305679, 340533, 416207, 469227, 917037, 1248621, 1407681, 2232383, 3745863, 6697149, 20091447, 24556213, 73668639, 221005917]

約数ペア:

[(1, 221005917), (3, 73668639), (9, 24556213), (11, 20091447), (33, 6697149), (59, 3745863), (99, 2232383), (157, 1407681), (177, 1248621), (241, 917037), (471, 469227), (531, 416207), (649, 340533), (723, 305679), (1413, 156409), (1727, 127971), (1947, 113511), (2169, 101893), (2651, 83367), (5181, 42657), (5841, 37837), (7953, 27789), (9263, 23859), (14219, 15543)]