211326975

素因数分解:

$3^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1321}}^1$

素因数の和:1422

約数の個数: 60

約数和(自身を含む): 396705760

約数和(自身を除く): 185378785

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 79, 81, 135, 225, 237, 395, 405, 675, 711, 1185, 1321, 1975, 2025, 2133, 3555, 3963, 5925, 6399, 6605, 10665, 11889, 17775, 19815, 31995, 33025, 35667, 53325, 59445, 99075, 104359, 107001, 159975, 178335, 297225, 313077, 521795, 535005, 891675, 939231, 1565385, 2608975, 2675025, 2817693, 4696155, 7826925, 8453079, 14088465, 23480775, 42265395, 70442325, 211326975]

約数ペア:

[(1, 211326975), (3, 70442325), (5, 42265395), (9, 23480775), (15, 14088465), (25, 8453079), (27, 7826925), (45, 4696155), (75, 2817693), (79, 2675025), (81, 2608975), (135, 1565385), (225, 939231), (237, 891675), (395, 535005), (405, 521795), (675, 313077), (711, 297225), (1185, 178335), (1321, 159975), (1975, 107001), (2025, 104359), (2133, 99075), (3555, 59445), (3963, 53325), (5925, 35667), (6399, 33025), (6605, 31995), (10665, 19815), (11889, 17775)]