21994920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:695

約数の個数: 96

約数和(自身を含む): 72277920

約数和(自身を除く): 50283000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 107, 120, 180, 214, 321, 360, 428, 535, 571, 642, 856, 963, 1070, 1142, 1284, 1605, 1713, 1926, 2140, 2284, 2568, 2855, 3210, 3426, 3852, 4280, 4568, 4815, 5139, 5710, 6420, 6852, 7704, 8565, 9630, 10278, 11420, 12840, 13704, 17130, 19260, 20556, 22840, 25695, 34260, 38520, 41112, 51390, 61097, 68520, 102780, 122194, 183291, 205560, 244388, 305485, 366582, 488776, 549873, 610970, 733164, 916455, 1099746, 1221940, 1466328, 1832910, 2199492, 2443880, 2749365, 3665820, 4398984, 5498730, 7331640, 10997460, 21994920]

約数ペア:

[(1, 21994920), (2, 10997460), (3, 7331640), (4, 5498730), (5, 4398984), (6, 3665820), (8, 2749365), (9, 2443880), (10, 2199492), (12, 1832910), (15, 1466328), (18, 1221940), (20, 1099746), (24, 916455), (30, 733164), (36, 610970), (40, 549873), (45, 488776), (60, 366582), (72, 305485), (90, 244388), (107, 205560), (120, 183291), (180, 122194), (214, 102780), (321, 68520), (360, 61097), (428, 51390), (535, 41112), (571, 38520), (642, 34260), (856, 25695), (963, 22840), (1070, 20556), (1142, 19260), (1284, 17130), (1605, 13704), (1713, 12840), (1926, 11420), (2140, 10278), (2284, 9630), (2568, 8565), (2855, 7704), (3210, 6852), (3426, 6420), (3852, 5710), (4280, 5139), (4568, 4815)]