21167580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 68544000

約数和(自身を除く): 47376420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 101, 105, 140, 202, 210, 303, 404, 420, 499, 505, 606, 707, 998, 1010, 1212, 1414, 1497, 1515, 1996, 2020, 2121, 2495, 2828, 2994, 3030, 3493, 3535, 4242, 4990, 5988, 6060, 6986, 7070, 7485, 8484, 9980, 10479, 10605, 13972, 14140, 14970, 17465, 20958, 21210, 29940, 34930, 41916, 42420, 50399, 52395, 69860, 100798, 104790, 151197, 201596, 209580, 251995, 302394, 352793, 503990, 604788, 705586, 755985, 1007980, 1058379, 1411172, 1511970, 1763965, 2116758, 3023940, 3527930, 4233516, 5291895, 7055860, 10583790, 21167580]

約数ペア:

[(1, 21167580), (2, 10583790), (3, 7055860), (4, 5291895), (5, 4233516), (6, 3527930), (7, 3023940), (10, 2116758), (12, 1763965), (14, 1511970), (15, 1411172), (20, 1058379), (21, 1007980), (28, 755985), (30, 705586), (35, 604788), (42, 503990), (60, 352793), (70, 302394), (84, 251995), (101, 209580), (105, 201596), (140, 151197), (202, 104790), (210, 100798), (303, 69860), (404, 52395), (420, 50399), (499, 42420), (505, 41916), (606, 34930), (707, 29940), (998, 21210), (1010, 20958), (1212, 17465), (1414, 14970), (1497, 14140), (1515, 13972), (1996, 10605), (2020, 10479), (2121, 9980), (2495, 8484), (2828, 7485), (2994, 7070), (3030, 6986), (3493, 6060), (3535, 5988), (4242, 4990)]