21177464

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 29971336

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 88, 124, 154, 217, 248, 308, 341, 434, 616, 682, 868, 1109, 1364, 1736, 2218, 2387, 2728, 4436, 4774, 7763, 8872, 9548, 12199, 15526, 19096, 24398, 31052, 34379, 48796, 62104, 68758, 85393, 97592, 137516, 170786, 240653, 275032, 341572, 378169, 481306, 683144, 756338, 962612, 1512676, 1925224, 2647183, 3025352, 5294366, 10588732, 21177464]

約数ペア:

[(1, 21177464), (2, 10588732), (4, 5294366), (7, 3025352), (8, 2647183), (11, 1925224), (14, 1512676), (22, 962612), (28, 756338), (31, 683144), (44, 481306), (56, 378169), (62, 341572), (77, 275032), (88, 240653), (124, 170786), (154, 137516), (217, 97592), (248, 85393), (308, 68758), (341, 62104), (434, 48796), (616, 34379), (682, 31052), (868, 24398), (1109, 19096), (1364, 15526), (1736, 12199), (2218, 9548), (2387, 8872), (2728, 7763), (4436, 4774)]