21353040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:697

約数の個数: 120

約数和(自身を含む): 73352448

約数和(自身を除く): 51999408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 631, 705, 720, 752, 846, 940, 1128, 1262, 1410, 1692, 1880, 1893, 2115, 2256, 2524, 2820, 3155, 3384, 3760, 3786, 4230, 5048, 5640, 5679, 6310, 6768, 7572, 8460, 9465, 10096, 11280, 11358, 12620, 15144, 16920, 18930, 22716, 25240, 28395, 29657, 30288, 33840, 37860, 45432, 50480, 56790, 59314, 75720, 88971, 90864, 113580, 118628, 148285, 151440, 177942, 227160, 237256, 266913, 296570, 355884, 444855, 454320, 474512, 533826, 593140, 711768, 889710, 1067652, 1186280, 1334565, 1423536, 1779420, 2135304, 2372560, 2669130, 3558840, 4270608, 5338260, 7117680, 10676520, 21353040]

約数ペア:

[(1, 21353040), (2, 10676520), (3, 7117680), (4, 5338260), (5, 4270608), (6, 3558840), (8, 2669130), (9, 2372560), (10, 2135304), (12, 1779420), (15, 1423536), (16, 1334565), (18, 1186280), (20, 1067652), (24, 889710), (30, 711768), (36, 593140), (40, 533826), (45, 474512), (47, 454320), (48, 444855), (60, 355884), (72, 296570), (80, 266913), (90, 237256), (94, 227160), (120, 177942), (141, 151440), (144, 148285), (180, 118628), (188, 113580), (235, 90864), (240, 88971), (282, 75720), (360, 59314), (376, 56790), (423, 50480), (470, 45432), (564, 37860), (631, 33840), (705, 30288), (720, 29657), (752, 28395), (846, 25240), (940, 22716), (1128, 18930), (1262, 16920), (1410, 15144), (1692, 12620), (1880, 11358), (1893, 11280), (2115, 10096), (2256, 9465), (2524, 8460), (2820, 7572), (3155, 6768), (3384, 6310), (3760, 5679), (3786, 5640), (4230, 5048)]