221567805

素因数分解:

$3^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2389}}^1$

素因数の和:2635

約数の個数: 40

約数和(自身を含む): 399082200

約数和(自身を除く): 177514395

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 229, 405, 687, 1145, 2061, 2389, 3435, 6183, 7167, 10305, 11945, 18549, 21501, 30915, 35835, 64503, 92745, 107505, 193509, 322515, 547081, 967545, 1641243, 2735405, 4923729, 8206215, 14771187, 24618645, 44313561, 73855935, 221567805]

約数ペア:

[(1, 221567805), (3, 73855935), (5, 44313561), (9, 24618645), (15, 14771187), (27, 8206215), (45, 4923729), (81, 2735405), (135, 1641243), (229, 967545), (405, 547081), (687, 322515), (1145, 193509), (2061, 107505), (2389, 92745), (3435, 64503), (6183, 35835), (7167, 30915), (10305, 21501), (11945, 18549)]