21205236

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{751}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 53650688

約数和(自身を除く): 32445452

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 181, 362, 543, 724, 751, 1086, 1502, 2172, 2253, 2353, 3004, 4506, 4706, 7059, 9012, 9412, 9763, 14118, 19526, 28236, 29289, 39052, 58578, 117156, 135931, 271862, 407793, 543724, 815586, 1631172, 1767103, 3534206, 5301309, 7068412, 10602618, 21205236]

約数ペア:

[(1, 21205236), (2, 10602618), (3, 7068412), (4, 5301309), (6, 3534206), (12, 1767103), (13, 1631172), (26, 815586), (39, 543724), (52, 407793), (78, 271862), (156, 135931), (181, 117156), (362, 58578), (543, 39052), (724, 29289), (751, 28236), (1086, 19526), (1502, 14118), (2172, 9763), (2253, 9412), (2353, 9012), (3004, 7059), (4506, 4706)]