28172355

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2207}}^1$

素因数の和:2275

約数の個数: 32

約数和(自身を含む): 48328704

約数和(自身を除く): 20156349

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 2207, 2553, 4255, 6621, 11035, 12765, 33105, 50761, 81659, 152283, 244977, 253805, 408295, 761415, 1224885, 1878157, 5634471, 9390785, 28172355]

約数ペア:

[(1, 28172355), (3, 9390785), (5, 5634471), (15, 1878157), (23, 1224885), (37, 761415), (69, 408295), (111, 253805), (115, 244977), (185, 152283), (345, 81659), (555, 50761), (851, 33105), (2207, 12765), (2553, 11035), (4255, 6621)]