21971790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4283}}^1$

素因数の和:4318

約数の個数: 64

約数和(自身を含む): 61689600

約数和(自身を除く): 39717810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 855, 1026, 1710, 2565, 4283, 5130, 8566, 12849, 21415, 25698, 38547, 42830, 64245, 77094, 81377, 115641, 128490, 162754, 192735, 231282, 244131, 385470, 406885, 488262, 578205, 732393, 813770, 1156410, 1220655, 1464786, 2197179, 2441310, 3661965, 4394358, 7323930, 10985895, 21971790]

約数ペア:

[(1, 21971790), (2, 10985895), (3, 7323930), (5, 4394358), (6, 3661965), (9, 2441310), (10, 2197179), (15, 1464786), (18, 1220655), (19, 1156410), (27, 813770), (30, 732393), (38, 578205), (45, 488262), (54, 406885), (57, 385470), (90, 244131), (95, 231282), (114, 192735), (135, 162754), (171, 128490), (190, 115641), (270, 81377), (285, 77094), (342, 64245), (513, 42830), (570, 38547), (855, 25698), (1026, 21415), (1710, 12849), (2565, 8566), (4283, 5130)]