21728176

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:206

約数の個数: 60

約数和(自身を含む): 46290688

約数和(自身を除く): 24562512

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 68, 74, 127, 136, 148, 254, 272, 289, 296, 508, 578, 592, 629, 1016, 1156, 1258, 2032, 2159, 2312, 2516, 4318, 4624, 4699, 5032, 8636, 9398, 10064, 10693, 17272, 18796, 21386, 34544, 36703, 37592, 42772, 73406, 75184, 79883, 85544, 146812, 159766, 171088, 293624, 319532, 587248, 639064, 1278128, 1358011, 2716022, 5432044, 10864088, 21728176]

約数ペア:

[(1, 21728176), (2, 10864088), (4, 5432044), (8, 2716022), (16, 1358011), (17, 1278128), (34, 639064), (37, 587248), (68, 319532), (74, 293624), (127, 171088), (136, 159766), (148, 146812), (254, 85544), (272, 79883), (289, 75184), (296, 73406), (508, 42772), (578, 37592), (592, 36703), (629, 34544), (1016, 21386), (1156, 18796), (1258, 17272), (2032, 10693), (2159, 10064), (2312, 9398), (2516, 8636), (4318, 5032), (4624, 4699)]