31211388

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3923}}^1$

素因数の和:3963

約数の個数: 72

約数和(自身を含む): 89985168

約数和(自身を除く): 58773780

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 3923, 3978, 7846, 7956, 11769, 15692, 23538, 35307, 47076, 50999, 66691, 70614, 101998, 133382, 141228, 152997, 200073, 203996, 266764, 305994, 400146, 458991, 600219, 611988, 800292, 866983, 917982, 1200438, 1733966, 1835964, 2400876, 2600949, 3467932, 5201898, 7802847, 10403796, 15605694, 31211388]

約数ペア:

[(1, 31211388), (2, 15605694), (3, 10403796), (4, 7802847), (6, 5201898), (9, 3467932), (12, 2600949), (13, 2400876), (17, 1835964), (18, 1733966), (26, 1200438), (34, 917982), (36, 866983), (39, 800292), (51, 611988), (52, 600219), (68, 458991), (78, 400146), (102, 305994), (117, 266764), (153, 203996), (156, 200073), (204, 152997), (221, 141228), (234, 133382), (306, 101998), (442, 70614), (468, 66691), (612, 50999), (663, 47076), (884, 35307), (1326, 23538), (1989, 15692), (2652, 11769), (3923, 7956), (3978, 7846)]