21823880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41969}}^1$

素因数の和:41993

約数の個数: 32

約数和(自身を含む): 52882200

約数和(自身を除く): 31058320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41969, 83938, 167876, 209845, 335752, 419690, 545597, 839380, 1091194, 1678760, 2182388, 2727985, 4364776, 5455970, 10911940, 21823880]

約数ペア:

[(1, 21823880), (2, 10911940), (4, 5455970), (5, 4364776), (8, 2727985), (10, 2182388), (13, 1678760), (20, 1091194), (26, 839380), (40, 545597), (52, 419690), (65, 335752), (104, 209845), (130, 167876), (260, 83938), (520, 41969)]