21279060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{977}}^1$

素因数の和:1014

約数の個数: 108

約数和(自身を含む): 71020404

約数和(自身を除く): 49741344

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 977, 990, 1089, 1210, 1452, 1815, 1954, 1980, 2178, 2420, 2931, 3630, 3908, 4356, 4885, 5445, 5862, 7260, 8793, 9770, 10747, 10890, 11724, 14655, 17586, 19540, 21494, 21780, 29310, 32241, 35172, 42988, 43965, 53735, 58620, 64482, 87930, 96723, 107470, 118217, 128964, 161205, 175860, 193446, 214940, 236434, 322410, 354651, 386892, 472868, 483615, 591085, 644820, 709302, 967230, 1063953, 1182170, 1418604, 1773255, 1934460, 2127906, 2364340, 3546510, 4255812, 5319765, 7093020, 10639530, 21279060]

約数ペア:

[(1, 21279060), (2, 10639530), (3, 7093020), (4, 5319765), (5, 4255812), (6, 3546510), (9, 2364340), (10, 2127906), (11, 1934460), (12, 1773255), (15, 1418604), (18, 1182170), (20, 1063953), (22, 967230), (30, 709302), (33, 644820), (36, 591085), (44, 483615), (45, 472868), (55, 386892), (60, 354651), (66, 322410), (90, 236434), (99, 214940), (110, 193446), (121, 175860), (132, 161205), (165, 128964), (180, 118217), (198, 107470), (220, 96723), (242, 87930), (330, 64482), (363, 58620), (396, 53735), (484, 43965), (495, 42988), (605, 35172), (660, 32241), (726, 29310), (977, 21780), (990, 21494), (1089, 19540), (1210, 17586), (1452, 14655), (1815, 11724), (1954, 10890), (1980, 10747), (2178, 9770), (2420, 8793), (2931, 7260), (3630, 5862), (3908, 5445), (4356, 4885)]