21103650652

素因数分解:

$2^2\times 7^2\times {\mathrm{313}}^1\times {\mathrm{419}}^1\times {\mathrm{821}}^1$

素因数の和:1571

約数の個数: 72

約数和(自身を含む): 43253738640

約数和(自身を除く): 22150087988

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 313, 419, 626, 821, 838, 1252, 1642, 1676, 2191, 2933, 3284, 4382, 5747, 5866, 8764, 11494, 11732, 15337, 20531, 22988, 30674, 40229, 41062, 61348, 80458, 82124, 131147, 160916, 256973, 262294, 343999, 513946, 524588, 687998, 918029, 1027892, 1375996, 1798811, 1836058, 2407993, 3597622, 3672116, 4815986, 6426203, 7195244, 9631972, 12591677, 12852406, 16855951, 25183354, 25704812, 33711902, 50366708, 67423804, 107671687, 215343374, 430686748, 753701809, 1507403618, 3014807236, 5275912663, 10551825326, 21103650652]

約数ペア:

[(1, 21103650652), (2, 10551825326), (4, 5275912663), (7, 3014807236), (14, 1507403618), (28, 753701809), (49, 430686748), (98, 215343374), (196, 107671687), (313, 67423804), (419, 50366708), (626, 33711902), (821, 25704812), (838, 25183354), (1252, 16855951), (1642, 12852406), (1676, 12591677), (2191, 9631972), (2933, 7195244), (3284, 6426203), (4382, 4815986), (5747, 3672116), (5866, 3597622), (8764, 2407993), (11494, 1836058), (11732, 1798811), (15337, 1375996), (20531, 1027892), (22988, 918029), (30674, 687998), (40229, 524588), (41062, 513946), (61348, 343999), (80458, 262294), (82124, 256973), (131147, 160916)]