221325412

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:401

約数の個数: 96

約数和(自身を含む): 509644800

約数和(自身を除く): 288319388

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 157, 161, 199, 253, 308, 314, 322, 398, 506, 628, 644, 796, 1012, 1099, 1393, 1727, 1771, 2189, 2198, 2786, 3454, 3542, 3611, 4378, 4396, 4577, 5572, 6908, 7084, 7222, 8756, 9154, 12089, 14444, 15323, 18308, 24178, 25277, 30646, 31243, 32039, 39721, 48356, 50347, 50554, 61292, 62486, 64078, 79442, 100694, 101108, 124972, 128156, 158884, 201388, 218701, 278047, 343673, 352429, 437402, 556094, 687346, 704858, 718589, 874804, 1112188, 1374692, 1409716, 1437178, 2405711, 2874356, 4811422, 5030123, 7904479, 9622844, 10060246, 15808958, 20120492, 31617916, 55331353, 110662706, 221325412]

約数ペア:

[(1, 221325412), (2, 110662706), (4, 55331353), (7, 31617916), (11, 20120492), (14, 15808958), (22, 10060246), (23, 9622844), (28, 7904479), (44, 5030123), (46, 4811422), (77, 2874356), (92, 2405711), (154, 1437178), (157, 1409716), (161, 1374692), (199, 1112188), (253, 874804), (308, 718589), (314, 704858), (322, 687346), (398, 556094), (506, 437402), (628, 352429), (644, 343673), (796, 278047), (1012, 218701), (1099, 201388), (1393, 158884), (1727, 128156), (1771, 124972), (2189, 101108), (2198, 100694), (2786, 79442), (3454, 64078), (3542, 62486), (3611, 61292), (4378, 50554), (4396, 50347), (4577, 48356), (5572, 39721), (6908, 32039), (7084, 31243), (7222, 30646), (8756, 25277), (9154, 24178), (12089, 18308), (14444, 15323)]