20211494895

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{18229}}^1$

素因数の和:18477

約数の個数: 64

約数和(自身を含む): 36961689600

約数和(自身を除く): 16750194705

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 191, 215, 387, 573, 645, 955, 1161, 1719, 1935, 2865, 5157, 5805, 8213, 8595, 18229, 24639, 25785, 41065, 54687, 73917, 91145, 123195, 164061, 221751, 273435, 369585, 492183, 783847, 820305, 1108755, 2351541, 2460915, 3481739, 3919235, 7054623, 10445217, 11757705, 17408695, 21163869, 31335651, 35273115, 52226085, 94006953, 105819345, 149714777, 156678255, 449144331, 470034765, 748573885, 1347432993, 2245721655, 4042298979, 6737164965, 20211494895]

約数ペア:

[(1, 20211494895), (3, 6737164965), (5, 4042298979), (9, 2245721655), (15, 1347432993), (27, 748573885), (43, 470034765), (45, 449144331), (129, 156678255), (135, 149714777), (191, 105819345), (215, 94006953), (387, 52226085), (573, 35273115), (645, 31335651), (955, 21163869), (1161, 17408695), (1719, 11757705), (1935, 10445217), (2865, 7054623), (5157, 3919235), (5805, 3481739), (8213, 2460915), (8595, 2351541), (18229, 1108755), (24639, 820305), (25785, 783847), (41065, 492183), (54687, 369585), (73917, 273435), (91145, 221751), (123195, 164061)]