21102228

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:394

約数の個数: 96

約数和(自身を含む): 63365120

約数和(自身を除く): 42262892

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 103, 108, 126, 189, 206, 252, 271, 309, 378, 412, 542, 618, 721, 756, 813, 927, 1084, 1236, 1442, 1626, 1854, 1897, 2163, 2439, 2781, 2884, 3252, 3708, 3794, 4326, 4878, 5562, 5691, 6489, 7317, 7588, 8652, 9756, 11124, 11382, 12978, 14634, 17073, 19467, 22764, 25956, 27913, 29268, 34146, 38934, 51219, 55826, 68292, 77868, 83739, 102438, 111652, 167478, 195391, 204876, 251217, 334956, 390782, 502434, 586173, 753651, 781564, 1004868, 1172346, 1507302, 1758519, 2344692, 3014604, 3517038, 5275557, 7034076, 10551114, 21102228]

約数ペア:

[(1, 21102228), (2, 10551114), (3, 7034076), (4, 5275557), (6, 3517038), (7, 3014604), (9, 2344692), (12, 1758519), (14, 1507302), (18, 1172346), (21, 1004868), (27, 781564), (28, 753651), (36, 586173), (42, 502434), (54, 390782), (63, 334956), (84, 251217), (103, 204876), (108, 195391), (126, 167478), (189, 111652), (206, 102438), (252, 83739), (271, 77868), (309, 68292), (378, 55826), (412, 51219), (542, 38934), (618, 34146), (721, 29268), (756, 27913), (813, 25956), (927, 22764), (1084, 19467), (1236, 17073), (1442, 14634), (1626, 12978), (1854, 11382), (1897, 11124), (2163, 9756), (2439, 8652), (2781, 7588), (2884, 7317), (3252, 6489), (3708, 5691), (3794, 5562), (4326, 4878)]