20021638

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4783}}^1$

素因数の和:4828

約数の個数: 32

約数和(自身を含む): 38578176

約数和(自身を除く): 18556538

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 182, 299, 322, 598, 2093, 4186, 4783, 9566, 33481, 62179, 66962, 110009, 124358, 220018, 435253, 770063, 870506, 1430117, 1540126, 2860234, 10010819, 20021638]

約数ペア:

[(1, 20021638), (2, 10010819), (7, 2860234), (13, 1540126), (14, 1430117), (23, 870506), (26, 770063), (46, 435253), (91, 220018), (161, 124358), (182, 110009), (299, 66962), (322, 62179), (598, 33481), (2093, 9566), (4186, 4783)]