31781958

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1231}}^1$

素因数の和:1580

約数の個数: 32

約数和(自身を含む): 68716032

約数和(自身を除く): 36934074

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 331, 662, 993, 1231, 1986, 2462, 3693, 4303, 7386, 8606, 12909, 16003, 25818, 32006, 48009, 96018, 407461, 814922, 1222383, 2444766, 5296993, 10593986, 15890979, 31781958]

約数ペア:

[(1, 31781958), (2, 15890979), (3, 10593986), (6, 5296993), (13, 2444766), (26, 1222383), (39, 814922), (78, 407461), (331, 96018), (662, 48009), (993, 32006), (1231, 25818), (1986, 16003), (2462, 12909), (3693, 8606), (4303, 7386)]