31630221

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 55351296

約数和(自身を除く): 23721075

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 83, 161, 207, 249, 263, 483, 581, 747, 789, 1449, 1743, 1841, 1909, 2367, 5229, 5523, 5727, 6049, 13363, 16569, 17181, 18147, 21829, 40089, 42343, 54441, 65487, 120267, 127029, 152803, 196461, 381087, 458409, 502067, 1375227, 1506201, 3514469, 4518603, 10543407, 31630221]

約数ペア:

[(1, 31630221), (3, 10543407), (7, 4518603), (9, 3514469), (21, 1506201), (23, 1375227), (63, 502067), (69, 458409), (83, 381087), (161, 196461), (207, 152803), (249, 127029), (263, 120267), (483, 65487), (581, 54441), (747, 42343), (789, 40089), (1449, 21829), (1743, 18147), (1841, 17181), (1909, 16569), (2367, 13363), (5229, 6049), (5523, 5727)]