21386816

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1787}}^1$

素因数の和:1827

約数の個数: 56

約数和(自身を含む): 49048416

約数和(自身を除く): 27661600

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 136, 176, 187, 272, 352, 374, 544, 704, 748, 1088, 1496, 1787, 2992, 3574, 5984, 7148, 11968, 14296, 19657, 28592, 30379, 39314, 57184, 60758, 78628, 114368, 121516, 157256, 243032, 314512, 334169, 486064, 629024, 668338, 972128, 1258048, 1336676, 1944256, 2673352, 5346704, 10693408, 21386816]

約数ペア:

[(1, 21386816), (2, 10693408), (4, 5346704), (8, 2673352), (11, 1944256), (16, 1336676), (17, 1258048), (22, 972128), (32, 668338), (34, 629024), (44, 486064), (64, 334169), (68, 314512), (88, 243032), (136, 157256), (176, 121516), (187, 114368), (272, 78628), (352, 60758), (374, 57184), (544, 39314), (704, 30379), (748, 28592), (1088, 19657), (1496, 14296), (1787, 11968), (2992, 7148), (3574, 5984)]