20668464

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{8443}}^1$

素因数の和:8474

約数の個数: 60

約数和(自身を含む): 61252776

約数和(自身を除く): 40584312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 48, 51, 68, 72, 102, 136, 144, 153, 204, 272, 306, 408, 612, 816, 1224, 2448, 8443, 16886, 25329, 33772, 50658, 67544, 75987, 101316, 135088, 143531, 151974, 202632, 287062, 303948, 405264, 430593, 574124, 607896, 861186, 1148248, 1215792, 1291779, 1722372, 2296496, 2583558, 3444744, 5167116, 6889488, 10334232, 20668464]

約数ペア:

[(1, 20668464), (2, 10334232), (3, 6889488), (4, 5167116), (6, 3444744), (8, 2583558), (9, 2296496), (12, 1722372), (16, 1291779), (17, 1215792), (18, 1148248), (24, 861186), (34, 607896), (36, 574124), (48, 430593), (51, 405264), (68, 303948), (72, 287062), (102, 202632), (136, 151974), (144, 143531), (153, 135088), (204, 101316), (272, 75987), (306, 67544), (408, 50658), (612, 33772), (816, 25329), (1224, 16886), (2448, 8443)]