19799884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 39414816

約数和(自身を除く): 19614932

約数列:

[1, 2, 4, 13, 26, 37, 41, 52, 74, 82, 148, 164, 251, 481, 502, 533, 962, 1004, 1066, 1517, 1924, 2132, 3034, 3263, 6068, 6526, 9287, 10291, 13052, 18574, 19721, 20582, 37148, 39442, 41164, 78884, 120731, 133783, 241462, 267566, 380767, 482924, 535132, 761534, 1523068, 4949971, 9899942, 19799884]

約数ペア:

[(1, 19799884), (2, 9899942), (4, 4949971), (13, 1523068), (26, 761534), (37, 535132), (41, 482924), (52, 380767), (74, 267566), (82, 241462), (148, 133783), (164, 120731), (251, 78884), (481, 41164), (502, 39442), (533, 37148), (962, 20582), (1004, 19721), (1066, 18574), (1517, 13052), (1924, 10291), (2132, 9287), (3034, 6526), (3263, 6068)]