21425030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 44568576

約数和(自身を除く): 23143546

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 61, 62, 103, 110, 122, 155, 206, 305, 310, 341, 515, 610, 671, 682, 1030, 1133, 1342, 1705, 1891, 2266, 3193, 3355, 3410, 3782, 5665, 6283, 6386, 6710, 9455, 11330, 12566, 15965, 18910, 20801, 31415, 31930, 35123, 41602, 62830, 69113, 70246, 104005, 138226, 175615, 194773, 208010, 345565, 351230, 389546, 691130, 973865, 1947730, 2142503, 4285006, 10712515, 21425030]

約数ペア:

[(1, 21425030), (2, 10712515), (5, 4285006), (10, 2142503), (11, 1947730), (22, 973865), (31, 691130), (55, 389546), (61, 351230), (62, 345565), (103, 208010), (110, 194773), (122, 175615), (155, 138226), (206, 104005), (305, 70246), (310, 69113), (341, 62830), (515, 41602), (610, 35123), (671, 31930), (682, 31415), (1030, 20801), (1133, 18910), (1342, 15965), (1705, 12566), (1891, 11330), (2266, 9455), (3193, 6710), (3355, 6386), (3410, 6283), (3782, 5665)]