21655744

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1661

約数の個数: 56

約数和(自身を含む): 49377600

約数和(自身を除く): 27721856

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 152, 176, 209, 304, 352, 418, 608, 704, 836, 1216, 1619, 1672, 3238, 3344, 6476, 6688, 12952, 13376, 17809, 25904, 30761, 35618, 51808, 61522, 71236, 103616, 123044, 142472, 246088, 284944, 338371, 492176, 569888, 676742, 984352, 1139776, 1353484, 1968704, 2706968, 5413936, 10827872, 21655744]

約数ペア:

[(1, 21655744), (2, 10827872), (4, 5413936), (8, 2706968), (11, 1968704), (16, 1353484), (19, 1139776), (22, 984352), (32, 676742), (38, 569888), (44, 492176), (64, 338371), (76, 284944), (88, 246088), (152, 142472), (176, 123044), (209, 103616), (304, 71236), (352, 61522), (418, 51808), (608, 35618), (704, 30761), (836, 25904), (1216, 17809), (1619, 13376), (1672, 12952), (3238, 6688), (3344, 6476)]