21838695

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 38221920

約数和(自身を除く): 16383225

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 109, 111, 185, 285, 327, 361, 545, 555, 703, 1083, 1635, 1805, 2071, 2109, 3515, 4033, 5415, 6213, 10355, 10545, 12099, 13357, 20165, 31065, 39349, 40071, 60495, 66785, 76627, 118047, 196745, 200355, 229881, 383135, 590235, 1149405, 1455913, 4367739, 7279565, 21838695]

約数ペア:

[(1, 21838695), (3, 7279565), (5, 4367739), (15, 1455913), (19, 1149405), (37, 590235), (57, 383135), (95, 229881), (109, 200355), (111, 196745), (185, 118047), (285, 76627), (327, 66785), (361, 60495), (545, 40071), (555, 39349), (703, 31065), (1083, 20165), (1635, 13357), (1805, 12099), (2071, 10545), (2109, 10355), (3515, 6213), (4033, 5415)]