2121400749

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{20897}}^1$

素因数の和:21069

約数の個数: 32

約数和(自身を含む): 3229994880

約数和(自身を除く): 1108594131

約数列:

[1, 3, 13, 19, 39, 57, 137, 247, 411, 741, 1781, 2603, 5343, 7809, 20897, 33839, 62691, 101517, 271661, 397043, 814983, 1191129, 2862889, 5161559, 8588667, 15484677, 37217557, 54394891, 111652671, 163184673, 707133583, 2121400749]

約数ペア:

[(1, 2121400749), (3, 707133583), (13, 163184673), (19, 111652671), (39, 54394891), (57, 37217557), (137, 15484677), (247, 8588667), (411, 5161559), (741, 2862889), (1781, 1191129), (2603, 814983), (5343, 397043), (7809, 271661), (20897, 101517), (33839, 62691)]