21038520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10313}}^1$

素因数の和:10344

約数の個数: 64

約数和(自身を含む): 66834720

約数和(自身を除く): 45796200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10313, 20626, 30939, 41252, 51565, 61878, 82504, 103130, 123756, 154695, 175321, 206260, 247512, 309390, 350642, 412520, 525963, 618780, 701284, 876605, 1051926, 1237560, 1402568, 1753210, 2103852, 2629815, 3506420, 4207704, 5259630, 7012840, 10519260, 21038520]

約数ペア:

[(1, 21038520), (2, 10519260), (3, 7012840), (4, 5259630), (5, 4207704), (6, 3506420), (8, 2629815), (10, 2103852), (12, 1753210), (15, 1402568), (17, 1237560), (20, 1051926), (24, 876605), (30, 701284), (34, 618780), (40, 525963), (51, 412520), (60, 350642), (68, 309390), (85, 247512), (102, 206260), (120, 175321), (136, 154695), (170, 123756), (204, 103130), (255, 82504), (340, 61878), (408, 51565), (510, 41252), (680, 30939), (1020, 20626), (2040, 10313)]