21872916

素因数分解:

$2^2\times 3^6\times {\mathrm{13}}^1\times {\mathrm{577}}^1$

素因数の和:612

約数の個数: 84

約数和(自身を含む): 61911892

約数和(自身を除く): 40038976

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 577, 702, 729, 972, 1053, 1154, 1404, 1458, 1731, 2106, 2308, 2916, 3159, 3462, 4212, 5193, 6318, 6924, 7501, 9477, 10386, 12636, 15002, 15579, 18954, 20772, 22503, 30004, 31158, 37908, 45006, 46737, 62316, 67509, 90012, 93474, 135018, 140211, 186948, 202527, 270036, 280422, 405054, 420633, 560844, 607581, 810108, 841266, 1215162, 1682532, 1822743, 2430324, 3645486, 5468229, 7290972, 10936458, 21872916]

約数ペア:

[(1, 21872916), (2, 10936458), (3, 7290972), (4, 5468229), (6, 3645486), (9, 2430324), (12, 1822743), (13, 1682532), (18, 1215162), (26, 841266), (27, 810108), (36, 607581), (39, 560844), (52, 420633), (54, 405054), (78, 280422), (81, 270036), (108, 202527), (117, 186948), (156, 140211), (162, 135018), (234, 93474), (243, 90012), (324, 67509), (351, 62316), (468, 46737), (486, 45006), (577, 37908), (702, 31158), (729, 30004), (972, 22503), (1053, 20772), (1154, 18954), (1404, 15579), (1458, 15002), (1731, 12636), (2106, 10386), (2308, 9477), (2916, 7501), (3159, 6924), (3462, 6318), (4212, 5193)]