21551145490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{90631}}^1$

素因数の和:90767

約数の個数: 64

約数和(自身を含む): 45939548160

約数和(自身を除く): 24388402670

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 79, 86, 158, 215, 301, 395, 430, 553, 602, 790, 1106, 1505, 2765, 3010, 3397, 5530, 6794, 16985, 23779, 33970, 47558, 90631, 118895, 181262, 237790, 453155, 634417, 906310, 1268834, 3172085, 3897133, 6344170, 7159849, 7794266, 14319698, 19485665, 27279931, 35799245, 38971330, 50118943, 54559862, 71598490, 100237886, 136399655, 250594715, 272799310, 307873507, 501189430, 615747014, 1539367535, 2155114549, 3078735070, 4310229098, 10775572745, 21551145490]

約数ペア:

[(1, 21551145490), (2, 10775572745), (5, 4310229098), (7, 3078735070), (10, 2155114549), (14, 1539367535), (35, 615747014), (43, 501189430), (70, 307873507), (79, 272799310), (86, 250594715), (158, 136399655), (215, 100237886), (301, 71598490), (395, 54559862), (430, 50118943), (553, 38971330), (602, 35799245), (790, 27279931), (1106, 19485665), (1505, 14319698), (2765, 7794266), (3010, 7159849), (3397, 6344170), (5530, 3897133), (6794, 3172085), (16985, 1268834), (23779, 906310), (33970, 634417), (47558, 453155), (90631, 237790), (118895, 181262)]