19266728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3037}}^1$

素因数の和:3117

約数の個数: 32

約数和(自身を含む): 39554760

約数和(自身を除く): 20288032

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3037, 3172, 6074, 6344, 12148, 24296, 39481, 78962, 157924, 185257, 315848, 370514, 741028, 1482056, 2408341, 4816682, 9633364, 19266728]

約数ペア:

[(1, 19266728), (2, 9633364), (4, 4816682), (8, 2408341), (13, 1482056), (26, 741028), (52, 370514), (61, 315848), (104, 185257), (122, 157924), (244, 78962), (488, 39481), (793, 24296), (1586, 12148), (3037, 6344), (3172, 6074)]