20139028

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 44136064

約数和(自身を除く): 23997036

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 61, 91, 122, 182, 244, 364, 427, 793, 854, 907, 1586, 1708, 1814, 3172, 3628, 5551, 6349, 11102, 11791, 12698, 22204, 23582, 25396, 47164, 55327, 82537, 110654, 165074, 221308, 330148, 387289, 719251, 774578, 1438502, 1549156, 2877004, 5034757, 10069514, 20139028]

約数ペア:

[(1, 20139028), (2, 10069514), (4, 5034757), (7, 2877004), (13, 1549156), (14, 1438502), (26, 774578), (28, 719251), (52, 387289), (61, 330148), (91, 221308), (122, 165074), (182, 110654), (244, 82537), (364, 55327), (427, 47164), (793, 25396), (854, 23582), (907, 22204), (1586, 12698), (1708, 11791), (1814, 11102), (3172, 6349), (3628, 5551)]