18900273

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 11512527

約数列:

[1, 3, 7, 21, 23, 69, 109, 161, 327, 359, 483, 763, 1077, 2289, 2507, 2513, 7521, 7539, 8257, 17549, 24771, 39131, 52647, 57799, 117393, 173397, 273917, 821751, 900013, 2700039, 6300091, 18900273]

約数ペア:

[(1, 18900273), (3, 6300091), (7, 2700039), (21, 900013), (23, 821751), (69, 273917), (109, 173397), (161, 117393), (327, 57799), (359, 52647), (483, 39131), (763, 24771), (1077, 17549), (2289, 8257), (2507, 7539), (2513, 7521)]