21984120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{773}}^1$

素因数の和:869

約数の個数: 96

約数和(自身を含む): 72446400

約数和(自身を除く): 50462280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 711, 773, 790, 948, 1185, 1422, 1546, 1580, 1896, 2319, 2370, 2844, 3092, 3160, 3555, 3865, 4638, 4740, 5688, 6184, 6957, 7110, 7730, 9276, 9480, 11595, 13914, 14220, 15460, 18552, 23190, 27828, 28440, 30920, 34785, 46380, 55656, 61067, 69570, 92760, 122134, 139140, 183201, 244268, 278280, 305335, 366402, 488536, 549603, 610670, 732804, 916005, 1099206, 1221340, 1465608, 1832010, 2198412, 2442680, 2748015, 3664020, 4396824, 5496030, 7328040, 10992060, 21984120]

約数ペア:

[(1, 21984120), (2, 10992060), (3, 7328040), (4, 5496030), (5, 4396824), (6, 3664020), (8, 2748015), (9, 2442680), (10, 2198412), (12, 1832010), (15, 1465608), (18, 1221340), (20, 1099206), (24, 916005), (30, 732804), (36, 610670), (40, 549603), (45, 488536), (60, 366402), (72, 305335), (79, 278280), (90, 244268), (120, 183201), (158, 139140), (180, 122134), (237, 92760), (316, 69570), (360, 61067), (395, 55656), (474, 46380), (632, 34785), (711, 30920), (773, 28440), (790, 27828), (948, 23190), (1185, 18552), (1422, 15460), (1546, 14220), (1580, 13914), (1896, 11595), (2319, 9480), (2370, 9276), (2844, 7730), (3092, 7110), (3160, 6957), (3555, 6184), (3865, 5688), (4638, 4740)]