721807029

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 1123948800

約数和(自身を除く): 402141771

約数列:

[1, 3, 9, 17, 51, 151, 153, 157, 199, 453, 471, 597, 1359, 1413, 1791, 2567, 2669, 3383, 7701, 8007, 10149, 23103, 23707, 24021, 30049, 30447, 31243, 71121, 90147, 93729, 213363, 270441, 281187, 403019, 510833, 531131, 1209057, 1532499, 1593393, 3627171, 4597497, 4717693, 4780179, 14153079, 42459237, 80200781, 240602343, 721807029]

約数ペア:

[(1, 721807029), (3, 240602343), (9, 80200781), (17, 42459237), (51, 14153079), (151, 4780179), (153, 4717693), (157, 4597497), (199, 3627171), (453, 1593393), (471, 1532499), (597, 1209057), (1359, 531131), (1413, 510833), (1791, 403019), (2567, 281187), (2669, 270441), (3383, 213363), (7701, 93729), (8007, 90147), (10149, 71121), (23103, 31243), (23707, 30447), (24021, 30049)]