21630206

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 36324288

約数和(自身を除く): 14694082

約数列:

[1, 2, 13, 26, 41, 82, 103, 197, 206, 394, 533, 1066, 1339, 2561, 2678, 4223, 5122, 8077, 8446, 16154, 20291, 40582, 54899, 105001, 109798, 210002, 263783, 527566, 831931, 1663862, 10815103, 21630206]

約数ペア:

[(1, 21630206), (2, 10815103), (13, 1663862), (26, 831931), (41, 527566), (82, 263783), (103, 210002), (197, 109798), (206, 105001), (394, 54899), (533, 40582), (1066, 20291), (1339, 16154), (2561, 8446), (2678, 8077), (4223, 5122)]