21373300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 51293592

約数和(自身を除く): 29920292

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 41, 50, 52, 65, 82, 100, 130, 164, 205, 260, 325, 401, 410, 533, 650, 802, 820, 1025, 1066, 1300, 1604, 2005, 2050, 2132, 2665, 4010, 4100, 5213, 5330, 8020, 10025, 10426, 10660, 13325, 16441, 20050, 20852, 26065, 26650, 32882, 40100, 52130, 53300, 65764, 82205, 104260, 130325, 164410, 213733, 260650, 328820, 411025, 427466, 521300, 822050, 854932, 1068665, 1644100, 2137330, 4274660, 5343325, 10686650, 21373300]

約数ペア:

[(1, 21373300), (2, 10686650), (4, 5343325), (5, 4274660), (10, 2137330), (13, 1644100), (20, 1068665), (25, 854932), (26, 822050), (41, 521300), (50, 427466), (52, 411025), (65, 328820), (82, 260650), (100, 213733), (130, 164410), (164, 130325), (205, 104260), (260, 82205), (325, 65764), (401, 53300), (410, 52130), (533, 40100), (650, 32882), (802, 26650), (820, 26065), (1025, 20852), (1066, 20050), (1300, 16441), (1604, 13325), (2005, 10660), (2050, 10426), (2132, 10025), (2665, 8020), (4010, 5330), (4100, 5213)]