21308490

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 42713910

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 149, 210, 227, 298, 315, 447, 454, 630, 681, 745, 894, 1043, 1135, 1341, 1362, 1490, 1589, 2043, 2086, 2235, 2270, 2682, 3129, 3178, 3405, 4086, 4470, 4767, 5215, 6258, 6705, 6810, 7945, 9387, 9534, 10215, 10430, 13410, 14301, 15645, 15890, 18774, 20430, 23835, 28602, 31290, 33823, 46935, 47670, 67646, 71505, 93870, 101469, 143010, 169115, 202938, 236761, 304407, 338230, 473522, 507345, 608814, 710283, 1014690, 1183805, 1420566, 1522035, 2130849, 2367610, 3044070, 3551415, 4261698, 7102830, 10654245, 21308490]

約数ペア:

[(1, 21308490), (2, 10654245), (3, 7102830), (5, 4261698), (6, 3551415), (7, 3044070), (9, 2367610), (10, 2130849), (14, 1522035), (15, 1420566), (18, 1183805), (21, 1014690), (30, 710283), (35, 608814), (42, 507345), (45, 473522), (63, 338230), (70, 304407), (90, 236761), (105, 202938), (126, 169115), (149, 143010), (210, 101469), (227, 93870), (298, 71505), (315, 67646), (447, 47670), (454, 46935), (630, 33823), (681, 31290), (745, 28602), (894, 23835), (1043, 20430), (1135, 18774), (1341, 15890), (1362, 15645), (1490, 14301), (1589, 13410), (2043, 10430), (2086, 10215), (2235, 9534), (2270, 9387), (2682, 7945), (3129, 6810), (3178, 6705), (3405, 6258), (4086, 5215), (4470, 4767)]