21699540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4157}}^1$

素因数の和:4201

約数の個数: 72

約数和(自身を含む): 68108040

約数和(自身を除く): 46408500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 4157, 5220, 8314, 12471, 16628, 20785, 24942, 37413, 41570, 49884, 62355, 74826, 83140, 120553, 124710, 149652, 187065, 241106, 249420, 361659, 374130, 482212, 602765, 723318, 748260, 1084977, 1205530, 1446636, 1808295, 2169954, 2411060, 3616590, 4339908, 5424885, 7233180, 10849770, 21699540]

約数ペア:

[(1, 21699540), (2, 10849770), (3, 7233180), (4, 5424885), (5, 4339908), (6, 3616590), (9, 2411060), (10, 2169954), (12, 1808295), (15, 1446636), (18, 1205530), (20, 1084977), (29, 748260), (30, 723318), (36, 602765), (45, 482212), (58, 374130), (60, 361659), (87, 249420), (90, 241106), (116, 187065), (145, 149652), (174, 124710), (180, 120553), (261, 83140), (290, 74826), (348, 62355), (435, 49884), (522, 41570), (580, 37413), (870, 24942), (1044, 20785), (1305, 16628), (1740, 12471), (2610, 8314), (4157, 5220)]