21421008

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:369

約数の個数: 120

約数和(自身を含む): 69638400

約数和(自身を除く): 48217392

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 79, 84, 112, 126, 144, 158, 168, 237, 252, 269, 316, 336, 474, 504, 538, 553, 632, 711, 807, 948, 1008, 1076, 1106, 1264, 1422, 1614, 1659, 1883, 1896, 2152, 2212, 2421, 2844, 3228, 3318, 3766, 3792, 4304, 4424, 4842, 4977, 5649, 5688, 6456, 6636, 7532, 8848, 9684, 9954, 11298, 11376, 12912, 13272, 15064, 16947, 19368, 19908, 21251, 22596, 26544, 30128, 33894, 38736, 39816, 42502, 45192, 63753, 67788, 79632, 85004, 90384, 127506, 135576, 148757, 170008, 191259, 255012, 271152, 297514, 340016, 382518, 446271, 510024, 595028, 765036, 892542, 1020048, 1190056, 1338813, 1530072, 1785084, 2380112, 2677626, 3060144, 3570168, 5355252, 7140336, 10710504, 21421008]

約数ペア:

[(1, 21421008), (2, 10710504), (3, 7140336), (4, 5355252), (6, 3570168), (7, 3060144), (8, 2677626), (9, 2380112), (12, 1785084), (14, 1530072), (16, 1338813), (18, 1190056), (21, 1020048), (24, 892542), (28, 765036), (36, 595028), (42, 510024), (48, 446271), (56, 382518), (63, 340016), (72, 297514), (79, 271152), (84, 255012), (112, 191259), (126, 170008), (144, 148757), (158, 135576), (168, 127506), (237, 90384), (252, 85004), (269, 79632), (316, 67788), (336, 63753), (474, 45192), (504, 42502), (538, 39816), (553, 38736), (632, 33894), (711, 30128), (807, 26544), (948, 22596), (1008, 21251), (1076, 19908), (1106, 19368), (1264, 16947), (1422, 15064), (1614, 13272), (1659, 12912), (1883, 11376), (1896, 11298), (2152, 9954), (2212, 9684), (2421, 8848), (2844, 7532), (3228, 6636), (3318, 6456), (3766, 5688), (3792, 5649), (4304, 4977), (4424, 4842)]