21185996816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1153}}^1\times {\mathrm{60443}}^1$

素因数の和:61623

約数の個数: 40

約数和(自身を含む): 43246473120

約数和(自身を除く): 22060476304

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1153, 2306, 4612, 9224, 18448, 21907, 43814, 60443, 87628, 120886, 175256, 241772, 350512, 483544, 967088, 1148417, 2296834, 4593668, 9187336, 18374672, 69690779, 139381558, 278763116, 557526232, 1115052464, 1324124801, 2648249602, 5296499204, 10592998408, 21185996816]

約数ペア:

[(1, 21185996816), (2, 10592998408), (4, 5296499204), (8, 2648249602), (16, 1324124801), (19, 1115052464), (38, 557526232), (76, 278763116), (152, 139381558), (304, 69690779), (1153, 18374672), (2306, 9187336), (4612, 4593668), (9224, 2296834), (18448, 1148417), (21907, 967088), (43814, 483544), (60443, 350512), (87628, 241772), (120886, 175256)]