18934972

素因数分解:

$2^2\times 7^3\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 39793600

約数和(自身を除く): 20858628

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 343, 373, 518, 686, 746, 1036, 1372, 1492, 1813, 2611, 3626, 5222, 7252, 10444, 12691, 13801, 18277, 25382, 27602, 36554, 50764, 55204, 73108, 96607, 127939, 193214, 255878, 386428, 511756, 676249, 1352498, 2704996, 4733743, 9467486, 18934972]

約数ペア:

[(1, 18934972), (2, 9467486), (4, 4733743), (7, 2704996), (14, 1352498), (28, 676249), (37, 511756), (49, 386428), (74, 255878), (98, 193214), (148, 127939), (196, 96607), (259, 73108), (343, 55204), (373, 50764), (518, 36554), (686, 27602), (746, 25382), (1036, 18277), (1372, 13801), (1492, 12691), (1813, 10444), (2611, 7252), (3626, 5222)]