201772557

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 342650880

約数和(自身を除く): 140878323

約数列:

[1, 3, 7, 9, 21, 63, 71, 79, 213, 237, 497, 553, 571, 639, 711, 1491, 1659, 1713, 3997, 4473, 4977, 5139, 5609, 11991, 16827, 35973, 39263, 40541, 45109, 50481, 117789, 121623, 135327, 283787, 315763, 353367, 364869, 405981, 851361, 947289, 2554083, 2841867, 3202739, 9608217, 22419173, 28824651, 67257519, 201772557]

約数ペア:

[(1, 201772557), (3, 67257519), (7, 28824651), (9, 22419173), (21, 9608217), (63, 3202739), (71, 2841867), (79, 2554083), (213, 947289), (237, 851361), (497, 405981), (553, 364869), (571, 353367), (639, 315763), (711, 283787), (1491, 135327), (1659, 121623), (1713, 117789), (3997, 50481), (4473, 45109), (4977, 40541), (5139, 39263), (5609, 35973), (11991, 16827)]