19428944

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:915

約数の個数: 40

約数和(自身を含む): 40176000

約数和(自身を除く): 20747056

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 79, 152, 158, 304, 316, 632, 809, 1264, 1501, 1618, 3002, 3236, 6004, 6472, 12008, 12944, 15371, 24016, 30742, 61484, 63911, 122968, 127822, 245936, 255644, 511288, 1022576, 1214309, 2428618, 4857236, 9714472, 19428944]

約数ペア:

[(1, 19428944), (2, 9714472), (4, 4857236), (8, 2428618), (16, 1214309), (19, 1022576), (38, 511288), (76, 255644), (79, 245936), (152, 127822), (158, 122968), (304, 63911), (316, 61484), (632, 30742), (809, 24016), (1264, 15371), (1501, 12944), (1618, 12008), (3002, 6472), (3236, 6004)]