21000401300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{95413}}^1$

素因数の和:95529

約数の個数: 72

約数和(自身を含む): 47703946752

約数和(自身を除く): 26703545452

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 71, 100, 124, 142, 155, 284, 310, 355, 620, 710, 775, 1420, 1550, 1775, 2201, 3100, 3550, 4402, 7100, 8804, 11005, 22010, 44020, 55025, 95413, 110050, 190826, 220100, 381652, 477065, 954130, 1908260, 2385325, 2957803, 4770650, 5915606, 6774323, 9541300, 11831212, 13548646, 14789015, 27097292, 29578030, 33871615, 59156060, 67743230, 73945075, 135486460, 147890150, 169358075, 210004013, 295780300, 338716150, 420008026, 677432300, 840016052, 1050020065, 2100040130, 4200080260, 5250100325, 10500200650, 21000401300]

約数ペア:

[(1, 21000401300), (2, 10500200650), (4, 5250100325), (5, 4200080260), (10, 2100040130), (20, 1050020065), (25, 840016052), (31, 677432300), (50, 420008026), (62, 338716150), (71, 295780300), (100, 210004013), (124, 169358075), (142, 147890150), (155, 135486460), (284, 73945075), (310, 67743230), (355, 59156060), (620, 33871615), (710, 29578030), (775, 27097292), (1420, 14789015), (1550, 13548646), (1775, 11831212), (2201, 9541300), (3100, 6774323), (3550, 5915606), (4402, 4770650), (7100, 2957803), (8804, 2385325), (11005, 1908260), (22010, 954130), (44020, 477065), (55025, 381652), (95413, 220100), (110050, 190826)]