21329028

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:426

約数の個数: 96

約数和(自身を含む): 64108800

約数和(自身を除く): 42779772

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 89, 108, 126, 178, 189, 252, 267, 317, 356, 378, 534, 623, 634, 756, 801, 951, 1068, 1246, 1268, 1602, 1869, 1902, 2219, 2403, 2492, 2853, 3204, 3738, 3804, 4438, 4806, 5607, 5706, 6657, 7476, 8559, 8876, 9612, 11214, 11412, 13314, 16821, 17118, 19971, 22428, 26628, 28213, 33642, 34236, 39942, 56426, 59913, 67284, 79884, 84639, 112852, 119826, 169278, 197491, 239652, 253917, 338556, 394982, 507834, 592473, 761751, 789964, 1015668, 1184946, 1523502, 1777419, 2369892, 3047004, 3554838, 5332257, 7109676, 10664514, 21329028]

約数ペア:

[(1, 21329028), (2, 10664514), (3, 7109676), (4, 5332257), (6, 3554838), (7, 3047004), (9, 2369892), (12, 1777419), (14, 1523502), (18, 1184946), (21, 1015668), (27, 789964), (28, 761751), (36, 592473), (42, 507834), (54, 394982), (63, 338556), (84, 253917), (89, 239652), (108, 197491), (126, 169278), (178, 119826), (189, 112852), (252, 84639), (267, 79884), (317, 67284), (356, 59913), (378, 56426), (534, 39942), (623, 34236), (634, 33642), (756, 28213), (801, 26628), (951, 22428), (1068, 19971), (1246, 17118), (1268, 16821), (1602, 13314), (1869, 11412), (1902, 11214), (2219, 9612), (2403, 8876), (2492, 8559), (2853, 7476), (3204, 6657), (3738, 5706), (3804, 5607), (4438, 4806)]