21383986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 36546048

約数和(自身を除く): 15162062

約数列:

[1, 2, 13, 26, 31, 43, 62, 86, 403, 559, 617, 806, 1118, 1234, 1333, 2666, 8021, 16042, 17329, 19127, 26531, 34658, 38254, 53062, 248651, 344903, 497302, 689806, 822461, 1644922, 10691993, 21383986]

約数ペア:

[(1, 21383986), (2, 10691993), (13, 1644922), (26, 822461), (31, 689806), (43, 497302), (62, 344903), (86, 248651), (403, 53062), (559, 38254), (617, 34658), (806, 26531), (1118, 19127), (1234, 17329), (1333, 16042), (2666, 8021)]