21908320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:684

約数の個数: 96

約数和(自身を含む): 61157376

約数和(自身を除く): 39249056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 434, 496, 560, 620, 631, 868, 992, 1085, 1120, 1240, 1262, 1736, 2170, 2480, 2524, 3155, 3472, 4340, 4417, 4960, 5048, 6310, 6944, 8680, 8834, 10096, 12620, 17360, 17668, 19561, 20192, 22085, 25240, 34720, 35336, 39122, 44170, 50480, 70672, 78244, 88340, 97805, 100960, 136927, 141344, 156488, 176680, 195610, 273854, 312976, 353360, 391220, 547708, 625952, 684635, 706720, 782440, 1095416, 1369270, 1564880, 2190832, 2738540, 3129760, 4381664, 5477080, 10954160, 21908320]

約数ペア:

[(1, 21908320), (2, 10954160), (4, 5477080), (5, 4381664), (7, 3129760), (8, 2738540), (10, 2190832), (14, 1564880), (16, 1369270), (20, 1095416), (28, 782440), (31, 706720), (32, 684635), (35, 625952), (40, 547708), (56, 391220), (62, 353360), (70, 312976), (80, 273854), (112, 195610), (124, 176680), (140, 156488), (155, 141344), (160, 136927), (217, 100960), (224, 97805), (248, 88340), (280, 78244), (310, 70672), (434, 50480), (496, 44170), (560, 39122), (620, 35336), (631, 34720), (868, 25240), (992, 22085), (1085, 20192), (1120, 19561), (1240, 17668), (1262, 17360), (1736, 12620), (2170, 10096), (2480, 8834), (2524, 8680), (3155, 6944), (3472, 6310), (4340, 5048), (4417, 4960)]