21320448

素因数分解:

$2^8\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 63576576

約数和(自身を除く): 42256128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 23, 24, 32, 34, 46, 48, 51, 64, 68, 69, 71, 92, 96, 102, 128, 136, 138, 142, 184, 192, 204, 213, 256, 272, 276, 284, 368, 384, 391, 408, 426, 544, 552, 568, 736, 768, 782, 816, 852, 1088, 1104, 1136, 1173, 1207, 1472, 1564, 1632, 1633, 1704, 2176, 2208, 2272, 2346, 2414, 2944, 3128, 3264, 3266, 3408, 3621, 4352, 4416, 4544, 4692, 4828, 4899, 5888, 6256, 6528, 6532, 6816, 7242, 8832, 9088, 9384, 9656, 9798, 12512, 13056, 13064, 13632, 14484, 17664, 18176, 18768, 19312, 19596, 25024, 26128, 27264, 27761, 28968, 37536, 38624, 39192, 50048, 52256, 54528, 55522, 57936, 75072, 77248, 78384, 83283, 100096, 104512, 111044, 115872, 150144, 154496, 156768, 166566, 209024, 222088, 231744, 300288, 308992, 313536, 333132, 418048, 444176, 463488, 627072, 666264, 888352, 926976, 1254144, 1332528, 1776704, 2665056, 3553408, 5330112, 7106816, 10660224, 21320448]

約数ペア:

[(1, 21320448), (2, 10660224), (3, 7106816), (4, 5330112), (6, 3553408), (8, 2665056), (12, 1776704), (16, 1332528), (17, 1254144), (23, 926976), (24, 888352), (32, 666264), (34, 627072), (46, 463488), (48, 444176), (51, 418048), (64, 333132), (68, 313536), (69, 308992), (71, 300288), (92, 231744), (96, 222088), (102, 209024), (128, 166566), (136, 156768), (138, 154496), (142, 150144), (184, 115872), (192, 111044), (204, 104512), (213, 100096), (256, 83283), (272, 78384), (276, 77248), (284, 75072), (368, 57936), (384, 55522), (391, 54528), (408, 52256), (426, 50048), (544, 39192), (552, 38624), (568, 37536), (736, 28968), (768, 27761), (782, 27264), (816, 26128), (852, 25024), (1088, 19596), (1104, 19312), (1136, 18768), (1173, 18176), (1207, 17664), (1472, 14484), (1564, 13632), (1632, 13064), (1633, 13056), (1704, 12512), (2176, 9798), (2208, 9656), (2272, 9384), (2346, 9088), (2414, 8832), (2944, 7242), (3128, 6816), (3264, 6532), (3266, 6528), (3408, 6256), (3621, 5888), (4352, 4899), (4416, 4828), (4544, 4692)]