21837840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4789}}^1$

素因数の和:4824

約数の個数: 80

約数和(自身を含む): 71275200

約数和(自身を除く): 49437360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4789, 9578, 14367, 19156, 23945, 28734, 38312, 47890, 57468, 71835, 76624, 90991, 95780, 114936, 143670, 181982, 191560, 229872, 272973, 287340, 363964, 383120, 454955, 545946, 574680, 727928, 909910, 1091892, 1149360, 1364865, 1455856, 1819820, 2183784, 2729730, 3639640, 4367568, 5459460, 7279280, 10918920, 21837840]

約数ペア:

[(1, 21837840), (2, 10918920), (3, 7279280), (4, 5459460), (5, 4367568), (6, 3639640), (8, 2729730), (10, 2183784), (12, 1819820), (15, 1455856), (16, 1364865), (19, 1149360), (20, 1091892), (24, 909910), (30, 727928), (38, 574680), (40, 545946), (48, 454955), (57, 383120), (60, 363964), (76, 287340), (80, 272973), (95, 229872), (114, 191560), (120, 181982), (152, 143670), (190, 114936), (228, 95780), (240, 90991), (285, 76624), (304, 71835), (380, 57468), (456, 47890), (570, 38312), (760, 28734), (912, 23945), (1140, 19156), (1520, 14367), (2280, 9578), (4560, 4789)]