21999390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{104759}}^1$

素因数の和:104776

約数の個数: 32

約数和(自身を含む): 60341760

約数和(自身を除く): 38342370

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 104759, 209518, 314277, 523795, 628554, 733313, 1047590, 1466626, 1571385, 2199939, 3142770, 3666565, 4399878, 7333130, 10999695, 21999390]

約数ペア:

[(1, 21999390), (2, 10999695), (3, 7333130), (5, 4399878), (6, 3666565), (7, 3142770), (10, 2199939), (14, 1571385), (15, 1466626), (21, 1047590), (30, 733313), (35, 628554), (42, 523795), (70, 314277), (105, 209518), (210, 104759)]