21472290

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{541}}^1$

素因数の和:574

約数の個数: 120

約数和(自身を含む): 67287132

約数和(自身を除く): 45814842

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 245, 270, 294, 315, 378, 405, 441, 490, 541, 567, 630, 735, 810, 882, 945, 1082, 1134, 1323, 1470, 1623, 1890, 2205, 2646, 2705, 2835, 3246, 3787, 3969, 4410, 4869, 5410, 5670, 6615, 7574, 7938, 8115, 9738, 11361, 13230, 14607, 16230, 18935, 19845, 22722, 24345, 26509, 29214, 34083, 37870, 39690, 43821, 48690, 53018, 56805, 68166, 73035, 79527, 87642, 102249, 113610, 132545, 146070, 159054, 170415, 204498, 219105, 238581, 265090, 306747, 340830, 397635, 438210, 477162, 511245, 613494, 715743, 795270, 1022490, 1192905, 1431486, 1533735, 2147229, 2385810, 3067470, 3578715, 4294458, 7157430, 10736145, 21472290]

約数ペア:

[(1, 21472290), (2, 10736145), (3, 7157430), (5, 4294458), (6, 3578715), (7, 3067470), (9, 2385810), (10, 2147229), (14, 1533735), (15, 1431486), (18, 1192905), (21, 1022490), (27, 795270), (30, 715743), (35, 613494), (42, 511245), (45, 477162), (49, 438210), (54, 397635), (63, 340830), (70, 306747), (81, 265090), (90, 238581), (98, 219105), (105, 204498), (126, 170415), (135, 159054), (147, 146070), (162, 132545), (189, 113610), (210, 102249), (245, 87642), (270, 79527), (294, 73035), (315, 68166), (378, 56805), (405, 53018), (441, 48690), (490, 43821), (541, 39690), (567, 37870), (630, 34083), (735, 29214), (810, 26509), (882, 24345), (945, 22722), (1082, 19845), (1134, 18935), (1323, 16230), (1470, 14607), (1623, 13230), (1890, 11361), (2205, 9738), (2646, 8115), (2705, 7938), (2835, 7574), (3246, 6615), (3787, 5670), (3969, 5410), (4410, 4869)]