21271908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3469}}^1$

素因数の和:3556

約数の個数: 48

約数和(自身を含む): 57518720

約数和(自身を除く): 36246812

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 73, 84, 146, 219, 292, 438, 511, 876, 1022, 1533, 2044, 3066, 3469, 6132, 6938, 10407, 13876, 20814, 24283, 41628, 48566, 72849, 97132, 145698, 253237, 291396, 506474, 759711, 1012948, 1519422, 1772659, 3038844, 3545318, 5317977, 7090636, 10635954, 21271908]

約数ペア:

[(1, 21271908), (2, 10635954), (3, 7090636), (4, 5317977), (6, 3545318), (7, 3038844), (12, 1772659), (14, 1519422), (21, 1012948), (28, 759711), (42, 506474), (73, 291396), (84, 253237), (146, 145698), (219, 97132), (292, 72849), (438, 48566), (511, 41628), (876, 24283), (1022, 20814), (1533, 13876), (2044, 10407), (3066, 6938), (3469, 6132)]