21103950

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:322

約数の個数: 96

約数和(自身を含む): 60710400

約数和(自身を除く): 39606450

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 101, 105, 150, 175, 199, 202, 210, 303, 350, 398, 505, 525, 597, 606, 707, 995, 1010, 1050, 1194, 1393, 1414, 1515, 1990, 2121, 2525, 2786, 2985, 3030, 3535, 4179, 4242, 4975, 5050, 5970, 6965, 7070, 7575, 8358, 9950, 10605, 13930, 14925, 15150, 17675, 20099, 20895, 21210, 29850, 34825, 35350, 40198, 41790, 53025, 60297, 69650, 100495, 104475, 106050, 120594, 140693, 200990, 208950, 281386, 301485, 422079, 502475, 602970, 703465, 844158, 1004950, 1406930, 1507425, 2110395, 3014850, 3517325, 4220790, 7034650, 10551975, 21103950]

約数ペア:

[(1, 21103950), (2, 10551975), (3, 7034650), (5, 4220790), (6, 3517325), (7, 3014850), (10, 2110395), (14, 1507425), (15, 1406930), (21, 1004950), (25, 844158), (30, 703465), (35, 602970), (42, 502475), (50, 422079), (70, 301485), (75, 281386), (101, 208950), (105, 200990), (150, 140693), (175, 120594), (199, 106050), (202, 104475), (210, 100495), (303, 69650), (350, 60297), (398, 53025), (505, 41790), (525, 40198), (597, 35350), (606, 34825), (707, 29850), (995, 21210), (1010, 20895), (1050, 20099), (1194, 17675), (1393, 15150), (1414, 14925), (1515, 13930), (1990, 10605), (2121, 9950), (2525, 8358), (2786, 7575), (2985, 7070), (3030, 6965), (3535, 5970), (4179, 5050), (4242, 4975)]