20812722

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 49904640

約数和(自身を除く): 29091918

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 59, 74, 111, 118, 177, 222, 227, 259, 354, 413, 454, 518, 681, 777, 826, 1239, 1362, 1554, 1589, 2183, 2478, 3178, 4366, 4767, 6549, 8399, 9534, 13098, 13393, 15281, 16798, 25197, 26786, 30562, 40179, 45843, 50394, 58793, 80358, 91686, 93751, 117586, 176379, 187502, 281253, 352758, 495541, 562506, 991082, 1486623, 2973246, 3468787, 6937574, 10406361, 20812722]

約数ペア:

[(1, 20812722), (2, 10406361), (3, 6937574), (6, 3468787), (7, 2973246), (14, 1486623), (21, 991082), (37, 562506), (42, 495541), (59, 352758), (74, 281253), (111, 187502), (118, 176379), (177, 117586), (222, 93751), (227, 91686), (259, 80358), (354, 58793), (413, 50394), (454, 45843), (518, 40179), (681, 30562), (777, 26786), (826, 25197), (1239, 16798), (1362, 15281), (1554, 13393), (1589, 13098), (2183, 9534), (2478, 8399), (3178, 6549), (4366, 4767)]