21918260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12043}}^1$

素因数の和:12072

約数の個数: 48

約数和(自身を含む): 56654976

約数和(自身を除く): 34736716

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 12043, 24086, 48172, 60215, 84301, 120430, 156559, 168602, 240860, 313118, 337204, 421505, 626236, 782795, 843010, 1095913, 1565590, 1686020, 2191826, 3131180, 4383652, 5479565, 10959130, 21918260]

約数ペア:

[(1, 21918260), (2, 10959130), (4, 5479565), (5, 4383652), (7, 3131180), (10, 2191826), (13, 1686020), (14, 1565590), (20, 1095913), (26, 843010), (28, 782795), (35, 626236), (52, 421505), (65, 337204), (70, 313118), (91, 240860), (130, 168602), (140, 156559), (182, 120430), (260, 84301), (364, 60215), (455, 48172), (910, 24086), (1820, 12043)]