21357216

素因数分解:

$2^5\times 3^3\times {\mathrm{19}}^1\times {\mathrm{1301}}^1$

素因数の和:1339

約数の個数: 96

約数和(自身を含む): 65620800

約数和(自身を除く): 44263584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 72, 76, 96, 108, 114, 144, 152, 171, 216, 228, 288, 304, 342, 432, 456, 513, 608, 684, 864, 912, 1026, 1301, 1368, 1824, 2052, 2602, 2736, 3903, 4104, 5204, 5472, 7806, 8208, 10408, 11709, 15612, 16416, 20816, 23418, 24719, 31224, 35127, 41632, 46836, 49438, 62448, 70254, 74157, 93672, 98876, 124896, 140508, 148314, 187344, 197752, 222471, 281016, 296628, 374688, 395504, 444942, 562032, 593256, 667413, 791008, 889884, 1124064, 1186512, 1334826, 1779768, 2373024, 2669652, 3559536, 5339304, 7119072, 10678608, 21357216]

約数ペア:

[(1, 21357216), (2, 10678608), (3, 7119072), (4, 5339304), (6, 3559536), (8, 2669652), (9, 2373024), (12, 1779768), (16, 1334826), (18, 1186512), (19, 1124064), (24, 889884), (27, 791008), (32, 667413), (36, 593256), (38, 562032), (48, 444942), (54, 395504), (57, 374688), (72, 296628), (76, 281016), (96, 222471), (108, 197752), (114, 187344), (144, 148314), (152, 140508), (171, 124896), (216, 98876), (228, 93672), (288, 74157), (304, 70254), (342, 62448), (432, 49438), (456, 46836), (513, 41632), (608, 35127), (684, 31224), (864, 24719), (912, 23418), (1026, 20816), (1301, 16416), (1368, 15612), (1824, 11709), (2052, 10408), (2602, 8208), (2736, 7806), (3903, 5472), (4104, 5204)]