21639974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 35964000

約数和(自身を除く): 14324026

約数列:

[1, 2, 19, 29, 38, 58, 73, 146, 269, 538, 551, 1102, 1387, 2117, 2774, 4234, 5111, 7801, 10222, 15602, 19637, 39274, 40223, 80446, 148219, 296438, 373103, 569473, 746206, 1138946, 10819987, 21639974]

約数ペア:

[(1, 21639974), (2, 10819987), (19, 1138946), (29, 746206), (38, 569473), (58, 373103), (73, 296438), (146, 148219), (269, 80446), (538, 40223), (551, 39274), (1102, 19637), (1387, 15602), (2117, 10222), (2774, 7801), (4234, 5111)]