31738278

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 75769344

約数和(自身を除く): 44031066

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 71, 78, 142, 143, 213, 286, 426, 429, 521, 781, 858, 923, 1042, 1562, 1563, 1846, 2343, 2769, 3126, 4686, 5538, 5731, 6773, 10153, 11462, 13546, 17193, 20306, 20319, 30459, 34386, 36991, 40638, 60918, 73982, 74503, 110973, 149006, 221946, 223509, 406901, 447018, 480883, 813802, 961766, 1220703, 1442649, 2441406, 2885298, 5289713, 10579426, 15869139, 31738278]

約数ペア:

[(1, 31738278), (2, 15869139), (3, 10579426), (6, 5289713), (11, 2885298), (13, 2441406), (22, 1442649), (26, 1220703), (33, 961766), (39, 813802), (66, 480883), (71, 447018), (78, 406901), (142, 223509), (143, 221946), (213, 149006), (286, 110973), (426, 74503), (429, 73982), (521, 60918), (781, 40638), (858, 36991), (923, 34386), (1042, 30459), (1562, 20319), (1563, 20306), (1846, 17193), (2343, 13546), (2769, 11462), (3126, 10153), (4686, 6773), (5538, 5731)]