21502320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12799}}^1$

素因数の和:12822

約数の個数: 80

約数和(自身を含む): 76185600

約数和(自身を除く): 54683280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12799, 25598, 38397, 51196, 63995, 76794, 89593, 102392, 127990, 153588, 179186, 191985, 204784, 255980, 268779, 307176, 358372, 383970, 447965, 511960, 537558, 614352, 716744, 767940, 895930, 1023920, 1075116, 1343895, 1433488, 1535880, 1791860, 2150232, 2687790, 3071760, 3583720, 4300464, 5375580, 7167440, 10751160, 21502320]

約数ペア:

[(1, 21502320), (2, 10751160), (3, 7167440), (4, 5375580), (5, 4300464), (6, 3583720), (7, 3071760), (8, 2687790), (10, 2150232), (12, 1791860), (14, 1535880), (15, 1433488), (16, 1343895), (20, 1075116), (21, 1023920), (24, 895930), (28, 767940), (30, 716744), (35, 614352), (40, 537558), (42, 511960), (48, 447965), (56, 383970), (60, 358372), (70, 307176), (80, 268779), (84, 255980), (105, 204784), (112, 191985), (120, 179186), (140, 153588), (168, 127990), (210, 102392), (240, 89593), (280, 76794), (336, 63995), (420, 51196), (560, 38397), (840, 25598), (1680, 12799)]