16981020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13477}}^1$

素因数の和:13499

約数の個数: 72

約数和(自身を含む): 58871904

約数和(自身を除く): 41890884

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 13477, 26954, 40431, 53908, 67385, 80862, 94339, 121293, 134770, 161724, 188678, 202155, 242586, 269540, 283017, 377356, 404310, 471695, 485172, 566034, 606465, 808620, 849051, 943390, 1132068, 1212930, 1415085, 1698102, 1886780, 2425860, 2830170, 3396204, 4245255, 5660340, 8490510, 16981020]

約数ペア:

[(1, 16981020), (2, 8490510), (3, 5660340), (4, 4245255), (5, 3396204), (6, 2830170), (7, 2425860), (9, 1886780), (10, 1698102), (12, 1415085), (14, 1212930), (15, 1132068), (18, 943390), (20, 849051), (21, 808620), (28, 606465), (30, 566034), (35, 485172), (36, 471695), (42, 404310), (45, 377356), (60, 283017), (63, 269540), (70, 242586), (84, 202155), (90, 188678), (105, 161724), (126, 134770), (140, 121293), (180, 94339), (210, 80862), (252, 67385), (315, 53908), (420, 40431), (630, 26954), (1260, 13477)]