21558516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:549

約数の個数: 96

約数和(自身を含む): 62963712

約数和(自身を除く): 41405196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 31, 34, 42, 51, 62, 68, 84, 93, 102, 119, 124, 186, 204, 217, 238, 357, 372, 434, 476, 487, 527, 651, 714, 868, 974, 1054, 1302, 1428, 1461, 1581, 1948, 2108, 2604, 2922, 3162, 3409, 3689, 5844, 6324, 6818, 7378, 8279, 10227, 11067, 13636, 14756, 15097, 16558, 20454, 22134, 24837, 30194, 33116, 40908, 44268, 45291, 49674, 57953, 60388, 90582, 99348, 105679, 115906, 173859, 181164, 211358, 231812, 256649, 317037, 347718, 422716, 513298, 634074, 695436, 769947, 1026596, 1268148, 1539894, 1796543, 3079788, 3593086, 5389629, 7186172, 10779258, 21558516]

約数ペア:

[(1, 21558516), (2, 10779258), (3, 7186172), (4, 5389629), (6, 3593086), (7, 3079788), (12, 1796543), (14, 1539894), (17, 1268148), (21, 1026596), (28, 769947), (31, 695436), (34, 634074), (42, 513298), (51, 422716), (62, 347718), (68, 317037), (84, 256649), (93, 231812), (102, 211358), (119, 181164), (124, 173859), (186, 115906), (204, 105679), (217, 99348), (238, 90582), (357, 60388), (372, 57953), (434, 49674), (476, 45291), (487, 44268), (527, 40908), (651, 33116), (714, 30194), (868, 24837), (974, 22134), (1054, 20454), (1302, 16558), (1428, 15097), (1461, 14756), (1581, 13636), (1948, 11067), (2108, 10227), (2604, 8279), (2922, 7378), (3162, 6818), (3409, 6324), (3689, 5844)]