21986835

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2399}}^1$

素因数の和:2467

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 16720365

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2399, 3055, 7197, 9165, 11995, 31187, 35985, 93561, 112753, 155935, 338259, 467805, 563765, 1465789, 1691295, 4397367, 7328945, 21986835]

約数ペア:

[(1, 21986835), (3, 7328945), (5, 4397367), (13, 1691295), (15, 1465789), (39, 563765), (47, 467805), (65, 338259), (141, 155935), (195, 112753), (235, 93561), (611, 35985), (705, 31187), (1833, 11995), (2399, 9165), (3055, 7197)]