21961320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 70329600

約数和(自身を除く): 48368280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 73, 92, 109, 115, 120, 138, 146, 184, 218, 219, 230, 276, 292, 327, 345, 365, 436, 438, 460, 545, 552, 584, 654, 690, 730, 872, 876, 920, 1090, 1095, 1308, 1380, 1460, 1635, 1679, 1752, 2180, 2190, 2507, 2616, 2760, 2920, 3270, 3358, 4360, 4380, 5014, 5037, 6540, 6716, 7521, 7957, 8395, 8760, 10028, 10074, 12535, 13080, 13432, 15042, 15914, 16790, 20056, 20148, 23871, 25070, 25185, 30084, 31828, 33580, 37605, 39785, 40296, 47742, 50140, 50370, 60168, 63656, 67160, 75210, 79570, 95484, 100280, 100740, 119355, 150420, 159140, 183011, 190968, 201480, 238710, 300840, 318280, 366022, 477420, 549033, 732044, 915055, 954840, 1098066, 1464088, 1830110, 2196132, 2745165, 3660220, 4392264, 5490330, 7320440, 10980660, 21961320]

約数ペア:

[(1, 21961320), (2, 10980660), (3, 7320440), (4, 5490330), (5, 4392264), (6, 3660220), (8, 2745165), (10, 2196132), (12, 1830110), (15, 1464088), (20, 1098066), (23, 954840), (24, 915055), (30, 732044), (40, 549033), (46, 477420), (60, 366022), (69, 318280), (73, 300840), (92, 238710), (109, 201480), (115, 190968), (120, 183011), (138, 159140), (146, 150420), (184, 119355), (218, 100740), (219, 100280), (230, 95484), (276, 79570), (292, 75210), (327, 67160), (345, 63656), (365, 60168), (436, 50370), (438, 50140), (460, 47742), (545, 40296), (552, 39785), (584, 37605), (654, 33580), (690, 31828), (730, 30084), (872, 25185), (876, 25070), (920, 23871), (1090, 20148), (1095, 20056), (1308, 16790), (1380, 15914), (1460, 15042), (1635, 13432), (1679, 13080), (1752, 12535), (2180, 10074), (2190, 10028), (2507, 8760), (2616, 8395), (2760, 7957), (2920, 7521), (3270, 6716), (3358, 6540), (4360, 5037), (4380, 5014)]