21044164

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 20082236

約数列:

[1, 2, 4, 17, 31, 34, 62, 67, 68, 124, 134, 149, 268, 298, 527, 596, 1054, 1139, 2077, 2108, 2278, 2533, 4154, 4556, 4619, 5066, 8308, 9238, 9983, 10132, 18476, 19966, 35309, 39932, 70618, 78523, 141236, 157046, 169711, 309473, 314092, 339422, 618946, 678844, 1237892, 5261041, 10522082, 21044164]

約数ペア:

[(1, 21044164), (2, 10522082), (4, 5261041), (17, 1237892), (31, 678844), (34, 618946), (62, 339422), (67, 314092), (68, 309473), (124, 169711), (134, 157046), (149, 141236), (268, 78523), (298, 70618), (527, 39932), (596, 35309), (1054, 19966), (1139, 18476), (2077, 10132), (2108, 9983), (2278, 9238), (2533, 8308), (4154, 5066), (4556, 4619)]