21366032

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1049}}^1$

素因数の和:1143

約数の個数: 40

約数和(自身を含む): 44268000

約数和(自身を除く): 22901968

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 268, 304, 536, 1049, 1072, 1273, 2098, 2546, 4196, 5092, 8392, 10184, 16784, 19931, 20368, 39862, 70283, 79724, 140566, 159448, 281132, 318896, 562264, 1124528, 1335377, 2670754, 5341508, 10683016, 21366032]

約数ペア:

[(1, 21366032), (2, 10683016), (4, 5341508), (8, 2670754), (16, 1335377), (19, 1124528), (38, 562264), (67, 318896), (76, 281132), (134, 159448), (152, 140566), (268, 79724), (304, 70283), (536, 39862), (1049, 20368), (1072, 19931), (1273, 16784), (2098, 10184), (2546, 8392), (4196, 5092)]