21477690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 64108800

約数和(自身を除く): 42631110

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 29, 30, 39, 45, 54, 58, 65, 78, 87, 90, 117, 130, 135, 145, 174, 195, 211, 234, 261, 270, 290, 351, 377, 390, 422, 435, 522, 585, 633, 702, 754, 783, 870, 1055, 1131, 1170, 1266, 1305, 1566, 1755, 1885, 1899, 2110, 2262, 2610, 2743, 3165, 3393, 3510, 3770, 3798, 3915, 5486, 5655, 5697, 6119, 6330, 6786, 7830, 8229, 9495, 10179, 11310, 11394, 12238, 13715, 16458, 16965, 18357, 18990, 20358, 24687, 27430, 28485, 30595, 33930, 36714, 41145, 49374, 50895, 55071, 56970, 61190, 74061, 79547, 82290, 91785, 101790, 110142, 123435, 148122, 159094, 165213, 183570, 238641, 246870, 275355, 330426, 370305, 397735, 477282, 550710, 715923, 740610, 795470, 826065, 1193205, 1431846, 1652130, 2147769, 2386410, 3579615, 4295538, 7159230, 10738845, 21477690]

約数ペア:

[(1, 21477690), (2, 10738845), (3, 7159230), (5, 4295538), (6, 3579615), (9, 2386410), (10, 2147769), (13, 1652130), (15, 1431846), (18, 1193205), (26, 826065), (27, 795470), (29, 740610), (30, 715923), (39, 550710), (45, 477282), (54, 397735), (58, 370305), (65, 330426), (78, 275355), (87, 246870), (90, 238641), (117, 183570), (130, 165213), (135, 159094), (145, 148122), (174, 123435), (195, 110142), (211, 101790), (234, 91785), (261, 82290), (270, 79547), (290, 74061), (351, 61190), (377, 56970), (390, 55071), (422, 50895), (435, 49374), (522, 41145), (585, 36714), (633, 33930), (702, 30595), (754, 28485), (783, 27430), (870, 24687), (1055, 20358), (1131, 18990), (1170, 18357), (1266, 16965), (1305, 16458), (1566, 13715), (1755, 12238), (1885, 11394), (1899, 11310), (2110, 10179), (2262, 9495), (2610, 8229), (2743, 7830), (3165, 6786), (3393, 6330), (3510, 6119), (3770, 5697), (3798, 5655), (3915, 5486)]