28274988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{823}}^1$

素因数の和:1246

約数の個数: 48

約数和(自身を含む): 75676160

約数和(自身を除く): 47401172

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 409, 818, 823, 1227, 1636, 1646, 2454, 2469, 2863, 3292, 4908, 4938, 5726, 5761, 8589, 9876, 11452, 11522, 17178, 17283, 23044, 34356, 34566, 69132, 336607, 673214, 1009821, 1346428, 2019642, 2356249, 4039284, 4712498, 7068747, 9424996, 14137494, 28274988]

約数ペア:

[(1, 28274988), (2, 14137494), (3, 9424996), (4, 7068747), (6, 4712498), (7, 4039284), (12, 2356249), (14, 2019642), (21, 1346428), (28, 1009821), (42, 673214), (84, 336607), (409, 69132), (818, 34566), (823, 34356), (1227, 23044), (1636, 17283), (1646, 17178), (2454, 11522), (2469, 11452), (2863, 9876), (3292, 8589), (4908, 5761), (4938, 5726)]