19945926723

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 29146867200

約数和(自身を除く): 9200940477

約数列:

[1, 3, 19, 43, 57, 101, 129, 197, 303, 409, 591, 817, 1227, 1919, 2451, 3743, 4343, 5757, 7771, 8471, 11229, 13029, 17587, 19897, 23313, 25413, 41309, 52761, 59691, 80573, 82517, 123927, 160949, 241719, 247551, 334153, 378043, 482847, 784871, 855571, 1002459, 1134129, 1530887, 1776287, 2354613, 2566713, 3464639, 4592661, 5328861, 8137873, 10393917, 16255849, 24413619, 33749453, 48767547, 65828141, 101248359, 154619587, 197484423, 349928539, 463858761, 1049785617, 6648642241, 19945926723]

約数ペア:

[(1, 19945926723), (3, 6648642241), (19, 1049785617), (43, 463858761), (57, 349928539), (101, 197484423), (129, 154619587), (197, 101248359), (303, 65828141), (409, 48767547), (591, 33749453), (817, 24413619), (1227, 16255849), (1919, 10393917), (2451, 8137873), (3743, 5328861), (4343, 4592661), (5757, 3464639), (7771, 2566713), (8471, 2354613), (11229, 1776287), (13029, 1530887), (17587, 1134129), (19897, 1002459), (23313, 855571), (25413, 784871), (41309, 482847), (52761, 378043), (59691, 334153), (80573, 247551), (82517, 241719), (123927, 160949)]