18770648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1787}}^1$

素因数の和:1907

約数の個数: 32

約数和(自身を含む): 38298960

約数和(自身を除く): 19528312

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 202, 404, 808, 1313, 1787, 2626, 3574, 5252, 7148, 10504, 14296, 23231, 46462, 92924, 180487, 185848, 360974, 721948, 1443896, 2346331, 4692662, 9385324, 18770648]

約数ペア:

[(1, 18770648), (2, 9385324), (4, 4692662), (8, 2346331), (13, 1443896), (26, 721948), (52, 360974), (101, 185848), (104, 180487), (202, 92924), (404, 46462), (808, 23231), (1313, 14296), (1787, 10504), (2626, 7148), (3574, 5252)]