21972678

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5749}}^1$

素因数の和:5781

約数の個数: 48

約数和(自身を含む): 55062000

約数和(自身を除く): 33089322

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 546, 637, 1274, 1911, 3822, 5749, 11498, 17247, 34494, 40243, 74737, 80486, 120729, 149474, 224211, 241458, 281701, 448422, 523159, 563402, 845103, 1046318, 1569477, 1690206, 3138954, 3662113, 7324226, 10986339, 21972678]

約数ペア:

[(1, 21972678), (2, 10986339), (3, 7324226), (6, 3662113), (7, 3138954), (13, 1690206), (14, 1569477), (21, 1046318), (26, 845103), (39, 563402), (42, 523159), (49, 448422), (78, 281701), (91, 241458), (98, 224211), (147, 149474), (182, 120729), (273, 80486), (294, 74737), (546, 40243), (637, 34494), (1274, 17247), (1911, 11498), (3822, 5749)]